diff --git a/src/World.Net.UnitTests/Countries/GermanyTest.cs b/src/World.Net.UnitTests/Countries/GermanyTest.cs
new file mode 100644
index 0000000..45435b5
--- /dev/null
+++ b/src/World.Net.UnitTests/Countries/GermanyTest.cs
@@ -0,0 +1,57 @@
+namespace World.Net.UnitTests.Countries;
+
+public sealed class GermanyTest : AssertCountryTestBase
+{
+    private const string GERMANY_COUNTRY_NAME = "Germany";
+    private const string GERMANY_NATIVE_NAME = "Deutschland";
+    private const string GERMANY_CAPITAL = "Berlin";
+    private const string GERMANY_OFFICIAL_NAME = "Federal Republic of Germany";
+    private const string GERMANY_ISO2_CODE = "DE";
+    private const string GERMANY_ISO3_CODE = "DEU";
+    private const int GERMANY_NUMERIC_CODE = 276;
+    private readonly string[] GERMANY_CALLING_CODE = ["+49"];
+    private const CountryIdentifier EXPECTEDID = CountryIdentifier.Germany;
+
+    private static readonly (string Name, string IsoCode, string Type)[] EXPECTED_STATES =
+    [
+        new("Baden-Württemberg", "DE-BW", "State"),
+        new("Bavaria", "DE-BY", "State"),
+        new("Berlin", "DE-BE", "State"),
+        new("Brandenburg", "DE-BB", "State"),
+        new("Bremen", "DE-HB", "State"),
+        new("Hamburg", "DE-HH", "State"),
+        new("Hesse", "DE-HE", "State"),
+        new("Lower Saxony", "DE-NI", "State"),
+        new("Mecklenburg-Vorpommern", "DE-MV", "State"),
+        new("North Rhine-Westphalia", "DE-NW", "State"),
+        new("Rhineland-Palatinate", "DE-RP", "State"),
+        new("Saarland", "DE-SL", "State"),
+        new("Saxony", "DE-SN", "State"),
+        new("Saxony-Anhalt", "DE-ST", "State"),
+        new("Schleswig-Holstein", "DE-SH", "State"),
+        new("Thuringia", "DE-TH", "State")
+    ];
+
+    [Fact]
+    public void GetCountry_ReturnsCorrectInformation_ForGermany()
+    {
+        // Arrange
+        // Act
+        var country = CountryProvider.GetCountry(EXPECTEDID);
+
+        // Assert
+        AssertCorrectInformation(
+            country,
+            EXPECTEDID,
+            GERMANY_COUNTRY_NAME,
+            GERMANY_OFFICIAL_NAME,
+            GERMANY_NATIVE_NAME,
+            GERMANY_CAPITAL,
+            GERMANY_NUMERIC_CODE,
+            GERMANY_ISO2_CODE,
+            GERMANY_ISO3_CODE,
+            GERMANY_CALLING_CODE,
+            EXPECTED_STATES
+        );
+    }
+}
diff --git a/src/World.Net.UnitTests/Countries/GhanaTest.cs b/src/World.Net.UnitTests/Countries/GhanaTest.cs
new file mode 100644
index 0000000..afd8794
--- /dev/null
+++ b/src/World.Net.UnitTests/Countries/GhanaTest.cs
@@ -0,0 +1,57 @@
+namespace World.Net.UnitTests.Countries;
+
+public sealed class GhanaTest : AssertCountryTestBase
+{
+    private const string GHANA_COUNTRY_NAME = "Ghana";
+    private const string GHANA_NATIVE_NAME = "Ghana";
+    private const string GHANA_CAPITAL = "Accra";
+    private const string GHANA_OFFICIAL_NAME = "Republic of Ghana";
+    private const string GHANA_ISO2_CODE = "GH";
+    private const string GHANA_ISO3_CODE = "GHA";
+    private const int GHANA_NUMERIC_CODE = 288;
+    private readonly string[] GHANA_CALLING_CODE = ["+233"];
+    private const CountryIdentifier EXPECTEDID = CountryIdentifier.Ghana;
+
+    private static readonly (string Name, string IsoCode, string Type)[] EXPECTED_STATES =
+    [
+        new("Ahafo", "GH-AF", "Region"),
+        new("Ashanti", "GH-AH", "Region"),
+        new("Bono", "GH-BO", "Region"),
+        new("Bono East", "GH-BE", "Region"),
+        new("Central", "GH-CP", "Region"),
+        new("Eastern", "GH-EP", "Region"),
+        new("Greater Accra", "GH-AA", "Region"),
+        new("North East", "GH-NE", "Region"),
+        new("Northern", "GH-NP", "Region"),
+        new("Oti", "GH-OT", "Region"),
+        new("Savannah", "GH-SV", "Region"),
+        new("Upper East", "GH-UE", "Region"),
+        new("Upper West", "GH-UW", "Region"),
+        new("Volta", "GH-TV", "Region"),
+        new("Western", "GH-WP", "Region"),
+        new("Western North", "GH-WN", "Region")
+    ];
+
+    [Fact]
+    public void GetCountry_ReturnsCorrectInformation_ForGhana()
+    {
+        // Arrange
+        // Act
+        var country = CountryProvider.GetCountry(EXPECTEDID);
+
+        // Assert
+        AssertCorrectInformation(
+            country,
+            EXPECTEDID,
+            GHANA_COUNTRY_NAME,
+            GHANA_OFFICIAL_NAME,
+            GHANA_NATIVE_NAME,
+            GHANA_CAPITAL,
+            GHANA_NUMERIC_CODE,
+            GHANA_ISO2_CODE,
+            GHANA_ISO3_CODE,
+            GHANA_CALLING_CODE,
+            EXPECTED_STATES
+        );
+    }
+}
diff --git a/src/World.Net.UnitTests/Countries/GibraltarTest.cs b/src/World.Net.UnitTests/Countries/GibraltarTest.cs
new file mode 100644
index 0000000..4158710
--- /dev/null
+++ b/src/World.Net.UnitTests/Countries/GibraltarTest.cs
@@ -0,0 +1,39 @@
+namespace World.Net.UnitTests.Countries;
+
+public sealed class GibraltarTest : AssertCountryTestBase
+{
+    private const string GIBRALTAR_COUNTRY_NAME = "Gibraltar";
+    private const string GIBRALTAR_NATIVE_NAME = "Gibraltar";
+    private const string GIBRALTAR_CAPITAL = "Gibraltar";
+    private const string GIBRALTAR_OFFICIAL_NAME = "Gibraltar";
+    private const string GIBRALTAR_ISO2_CODE = "GI";
+    private const string GIBRALTAR_ISO3_CODE = "GIB";
+    private const int GIBRALTAR_NUMERIC_CODE = 292;
+    private readonly string[] GIBRALTAR_CALLING_CODE = ["+350"];
+    private const CountryIdentifier EXPECTEDID = CountryIdentifier.Gibraltar;
+
+    private static readonly (string Name, string IsoCode, string Type)[] EXPECTED_STATES = [];
+
+    [Fact]
+    public void GetCountry_ReturnsCorrectInformation_ForGibraltar()
+    {
+        // Arrange
+        // Act
+        var country = CountryProvider.GetCountry(EXPECTEDID);
+
+        // Assert
+        AssertCorrectInformation(
+            country,
+            EXPECTEDID,
+            GIBRALTAR_COUNTRY_NAME,
+            GIBRALTAR_OFFICIAL_NAME,
+            GIBRALTAR_NATIVE_NAME,
+            GIBRALTAR_CAPITAL,
+            GIBRALTAR_NUMERIC_CODE,
+            GIBRALTAR_ISO2_CODE,
+            GIBRALTAR_ISO3_CODE,
+            GIBRALTAR_CALLING_CODE,
+            EXPECTED_STATES
+        );
+    }
+}
diff --git a/src/World.Net.UnitTests/Countries/GreeceTest.cs b/src/World.Net.UnitTests/Countries/GreeceTest.cs
new file mode 100644
index 0000000..afa2622
--- /dev/null
+++ b/src/World.Net.UnitTests/Countries/GreeceTest.cs
@@ -0,0 +1,54 @@
+namespace World.Net.UnitTests.Countries;
+
+public sealed class GreeceTest : AssertCountryTestBase
+{
+    private const string GREECE_COUNTRY_NAME = "Greece";
+    private const string GREECE_NATIVE_NAME = "Ελλάδα";
+    private const string GREECE_CAPITAL = "Athens";
+    private const string GREECE_OFFICIAL_NAME = "Hellenic Republic";
+    private const string GREECE_ISO2_CODE = "GR";
+    private const string GREECE_ISO3_CODE = "GRC";
+    private const int GREECE_NUMERIC_CODE = 300;
+    private readonly string[] GREECE_CALLING_CODE = ["+30"];
+    private const CountryIdentifier EXPECTEDID = CountryIdentifier.Greece;
+
+    private static readonly (string Name, string IsoCode, string Type)[] EXPECTED_STATES =
+    [
+        new("Attica", "GR-I", "Region"),
+        new("Central Greece", "GR-H", "Region"),
+        new("Central Macedonia", "GR-B", "Region"),
+        new("Crete", "GR-M", "Region"),
+        new("Eastern Macedonia and Thrace", "GR-A", "Region"),
+        new("Epirus", "GR-D", "Region"),
+        new("Ionian Islands", "GR-F", "Region"),
+        new("North Aegean", "GR-K", "Region"),
+        new("Peloponnese", "GR-J", "Region"),
+        new("South Aegean", "GR-L", "Region"),
+        new("Thessaly", "GR-E", "Region"),
+        new("Western Greece", "GR-G", "Region"),
+        new("Western Macedonia", "GR-C", "Region")
+    ];
+
+    [Fact]
+    public void GetCountry_ReturnsCorrectInformation_ForGreece()
+    {
+        // Arrange
+        // Act
+        var country = CountryProvider.GetCountry(EXPECTEDID);
+
+        // Assert
+        AssertCorrectInformation(
+            country,
+            EXPECTEDID,
+            GREECE_COUNTRY_NAME,
+            GREECE_OFFICIAL_NAME,
+            GREECE_NATIVE_NAME,
+            GREECE_CAPITAL,
+            GREECE_NUMERIC_CODE,
+            GREECE_ISO2_CODE,
+            GREECE_ISO3_CODE,
+            GREECE_CALLING_CODE,
+            EXPECTED_STATES
+        );
+    }
+}
diff --git a/src/World.Net.UnitTests/Countries/GreenlandTest.cs b/src/World.Net.UnitTests/Countries/GreenlandTest.cs
new file mode 100644
index 0000000..898521a
--- /dev/null
+++ b/src/World.Net.UnitTests/Countries/GreenlandTest.cs
@@ -0,0 +1,46 @@
+namespace World.Net.UnitTests.Countries;
+
+public sealed class GreenlandTest : AssertCountryTestBase
+{
+    private const string GREENLAND_COUNTRY_NAME = "Greenland";
+    private const string GREENLAND_NATIVE_NAME = "Kalaallit Nunaat";
+    private const string GREENLAND_CAPITAL = "Nuuk";
+    private const string GREENLAND_OFFICIAL_NAME = "Greenland";
+    private const string GREENLAND_ISO2_CODE = "GL";
+    private const string GREENLAND_ISO3_CODE = "GRL";
+    private const int GREENLAND_NUMERIC_CODE = 304;
+    private readonly string[] GREENLAND_CALLING_CODE = ["+299"];
+    private const CountryIdentifier EXPECTEDID = CountryIdentifier.Greenland;
+
+    private static readonly (string Name, string IsoCode, string Type)[] EXPECTED_STATES =
+    [
+        new("Avannaata", "GL-AV", "Municipality"),
+        new("Kujalleq", "GL-KU", "Municipality"),
+        new("Qeqertalik", "GL-QT", "Municipality"),
+        new("Qeqqata", "GL-QE", "Municipality"),
+        new("Sermersooq", "GL-SM", "Municipality")
+    ];
+
+    [Fact]
+    public void GetCountry_ReturnsCorrectInformation_ForGreenland()
+    {
+        // Arrange
+        // Act
+        var country = CountryProvider.GetCountry(EXPECTEDID);
+
+        // Assert
+        AssertCorrectInformation(
+            country,
+            EXPECTEDID,
+            GREENLAND_COUNTRY_NAME,
+            GREENLAND_OFFICIAL_NAME,
+            GREENLAND_NATIVE_NAME,
+            GREENLAND_CAPITAL,
+            GREENLAND_NUMERIC_CODE,
+            GREENLAND_ISO2_CODE,
+            GREENLAND_ISO3_CODE,
+            GREENLAND_CALLING_CODE,
+            EXPECTED_STATES
+        );
+    }
+}
diff --git a/src/World.Net/Countries/Germany.cs b/src/World.Net/Countries/Germany.cs
new file mode 100644
index 0000000..8daa314
--- /dev/null
+++ b/src/World.Net/Countries/Germany.cs
@@ -0,0 +1,52 @@
+namespace World.Net.Countries;
+
+internal sealed class Germany : ICountry
+{
+    //<inheritdoc/>
+    public CountryIdentifier Id => CountryIdentifier.Germany;
+
+    //<inheritdoc/>
+    public string Name { get; } = "Germany";
+
+    //<inheritdoc/>
+    public string OfficialName { get; } = "Federal Republic of Germany";
+
+    //<inheritdoc/>
+    public string NativeName => "Deutschland";
+
+    //<inheritdoc/>
+    public string Capital { get; } = "Berlin";
+
+    //<inheritdoc/>
+    public int NumericCode { get; } = 276;
+
+    //<inheritdoc/>
+    public string ISO2Code { get; } = "DE";
+
+    //<inheritdoc/>
+    public string ISO3Code { get; } = "DEU";
+
+    //<inheritdoc/>
+    public string[] CallingCode { get; } = ["+49"];
+
+    //<inheritdoc/>
+    public IEnumerable<State> States =>
+    [
+        new("Baden-Württemberg", "DE-BW", "State"),
+        new("Bavaria", "DE-BY", "State"),
+        new("Berlin", "DE-BE", "State"),
+        new("Brandenburg", "DE-BB", "State"),
+        new("Bremen", "DE-HB", "State"),
+        new("Hamburg", "DE-HH", "State"),
+        new("Hesse", "DE-HE", "State"),
+        new("Lower Saxony", "DE-NI", "State"),
+        new("Mecklenburg-Vorpommern", "DE-MV", "State"),
+        new("North Rhine-Westphalia", "DE-NW", "State"),
+        new("Rhineland-Palatinate", "DE-RP", "State"),
+        new("Saarland", "DE-SL", "State"),
+        new("Saxony", "DE-SN", "State"),
+        new("Saxony-Anhalt", "DE-ST", "State"),
+        new("Schleswig-Holstein", "DE-SH", "State"),
+        new("Thuringia", "DE-TH", "State")
+    ];
+}
diff --git a/src/World.Net/Countries/Ghana.cs b/src/World.Net/Countries/Ghana.cs
new file mode 100644
index 0000000..4a0e8ab
--- /dev/null
+++ b/src/World.Net/Countries/Ghana.cs
@@ -0,0 +1,52 @@
+namespace World.Net.Countries;
+
+internal sealed class Ghana : ICountry
+{
+    //<inheritdoc/>
+    public CountryIdentifier Id => CountryIdentifier.Ghana;
+
+    //<inheritdoc/>
+    public string Name { get; } = "Ghana";
+
+    //<inheritdoc/>
+    public string OfficialName { get; } = "Republic of Ghana";
+
+    //<inheritdoc/>
+    public string NativeName => "Ghana";
+
+    //<inheritdoc/>
+    public string Capital { get; } = "Accra";
+
+    //<inheritdoc/>
+    public int NumericCode { get; } = 288;
+
+    //<inheritdoc/>
+    public string ISO2Code { get; } = "GH";
+
+    //<inheritdoc/>
+    public string ISO3Code { get; } = "GHA";
+
+    //<inheritdoc/>
+    public string[] CallingCode { get; } = ["+233"];
+
+    //<inheritdoc/>
+    public IEnumerable<State> States =>
+    [
+        new("Ahafo", "GH-AF", "Region"),
+        new("Ashanti", "GH-AH", "Region"),
+        new("Bono", "GH-BO", "Region"),
+        new("Bono East", "GH-BE", "Region"),
+        new("Central", "GH-CP", "Region"),
+        new("Eastern", "GH-EP", "Region"),
+        new("Greater Accra", "GH-AA", "Region"),
+        new("North East", "GH-NE", "Region"),
+        new("Northern", "GH-NP", "Region"),
+        new("Oti", "GH-OT", "Region"),
+        new("Savannah", "GH-SV", "Region"),
+        new("Upper East", "GH-UE", "Region"),
+        new("Upper West", "GH-UW", "Region"),
+        new("Volta", "GH-TV", "Region"),
+        new("Western", "GH-WP", "Region"),
+        new("Western North", "GH-WN", "Region")
+    ];
+}
diff --git a/src/World.Net/Countries/Gibraltar.cs b/src/World.Net/Countries/Gibraltar.cs
new file mode 100644
index 0000000..1ac775d
--- /dev/null
+++ b/src/World.Net/Countries/Gibraltar.cs
@@ -0,0 +1,34 @@
+namespace World.Net.Countries;
+
+internal sealed class Gibraltar : ICountry
+{
+    //<inheritdoc/>
+    public CountryIdentifier Id => CountryIdentifier.Gibraltar;
+
+    //<inheritdoc/>
+    public string Name { get; } = "Gibraltar";
+
+    //<inheritdoc/>
+    public string OfficialName { get; } = "Gibraltar";
+
+    //<inheritdoc/>
+    public string NativeName => "Gibraltar";
+
+    //<inheritdoc/>
+    public string Capital { get; } = "Gibraltar";
+
+    //<inheritdoc/>
+    public int NumericCode { get; } = 292;
+
+    //<inheritdoc/>
+    public string ISO2Code { get; } = "GI";
+
+    //<inheritdoc/>
+    public string ISO3Code { get; } = "GIB";
+
+    //<inheritdoc/>
+    public string[] CallingCode { get; } = ["+350"];
+
+    //<inheritdoc/>
+    public IEnumerable<State> States => [];
+}
diff --git a/src/World.Net/Countries/Greece.cs b/src/World.Net/Countries/Greece.cs
new file mode 100644
index 0000000..754b055
--- /dev/null
+++ b/src/World.Net/Countries/Greece.cs
@@ -0,0 +1,49 @@
+namespace World.Net.Countries;
+
+internal sealed class Greece : ICountry
+{
+    //<inheritdoc/>
+    public CountryIdentifier Id => CountryIdentifier.Greece;
+
+    //<inheritdoc/>
+    public string Name { get; } = "Greece";
+
+    //<inheritdoc/>
+    public string OfficialName { get; } = "Hellenic Republic";
+
+    //<inheritdoc/>
+    public string NativeName => "Ελλάδα";
+
+    //<inheritdoc/>
+    public string Capital { get; } = "Athens";
+
+    //<inheritdoc/>
+    public int NumericCode { get; } = 300;
+
+    //<inheritdoc/>
+    public string ISO2Code { get; } = "GR";
+
+    //<inheritdoc/>
+    public string ISO3Code { get; } = "GRC";
+
+    //<inheritdoc/>
+    public string[] CallingCode { get; } = ["+30"];
+
+    //<inheritdoc/>
+    public IEnumerable<State> States =>
+    [
+        new("Attica", "GR-I", "Region"),
+        new("Central Greece", "GR-H", "Region"),
+        new("Central Macedonia", "GR-B", "Region"),
+        new("Crete", "GR-M", "Region"),
+        new("Eastern Macedonia and Thrace", "GR-A", "Region"),
+        new("Epirus", "GR-D", "Region"),
+        new("Ionian Islands", "GR-F", "Region"),
+        new("North Aegean", "GR-K", "Region"),
+        new("Peloponnese", "GR-J", "Region"),
+        new("South Aegean", "GR-L", "Region"),
+        new("Thessaly", "GR-E", "Region"),
+        new("Western Greece", "GR-G", "Region"),
+        new("Western Macedonia", "GR-C", "Region")
+    ];
+}
diff --git a/src/World.Net/Countries/Greenland.cs b/src/World.Net/Countries/Greenland.cs
new file mode 100644
index 0000000..b543316
--- /dev/null
+++ b/src/World.Net/Countries/Greenland.cs
@@ -0,0 +1,41 @@
+namespace World.Net.Countries;
+
+internal sealed class Greenland : ICountry
+{
+    //<inheritdoc/>
+    public CountryIdentifier Id => CountryIdentifier.Greenland;
+
+    //<inheritdoc/>
+    public string Name { get; } = "Greenland";
+
+    //<inheritdoc/>
+    public string OfficialName { get; } = "Greenland";
+
+    //<inheritdoc/>
+    public string NativeName => "Kalaallit Nunaat";
+
+    //<inheritdoc/>
+    public string Capital { get; } = "Nuuk";
+
+    //<inheritdoc/>
+    public int NumericCode { get; } = 304;
+
+    //<inheritdoc/>
+    public string ISO2Code { get; } = "GL";
+
+    //<inheritdoc/>
+    public string ISO3Code { get; } = "GRL";
+
+    //<inheritdoc/>
+    public string[] CallingCode { get; } = ["+299"];
+
+    //<inheritdoc/>
+    public IEnumerable<State> States =>
+    [
+        new("Avannaata", "GL-AV", "Municipality"),
+        new("Kujalleq", "GL-KU", "Municipality"),
+        new("Qeqertalik", "GL-QT", "Municipality"),
+        new("Qeqqata", "GL-QE", "Municipality"),
+        new("Sermersooq", "GL-SM", "Municipality")
+    ];
+}
diff --git a/src/World.Net/Helpers/CountryInitializer.cs b/src/World.Net/Helpers/CountryInitializer.cs
index 9fa2b7e..e8319e7 100644
--- a/src/World.Net/Helpers/CountryInitializer.cs
+++ b/src/World.Net/Helpers/CountryInitializer.cs
@@ -86,6 +86,11 @@ public static Dictionary<CountryIdentifier, ICountry> Initialize()
             { CountryIdentifier.FrenchPolynesia, new FrenchPolynesia() },
             { CountryIdentifier.Gabon, new Gabon() },
             { CountryIdentifier.Georgia, new Georgia() },
+            { CountryIdentifier.Germany, new Germany() },
+            { CountryIdentifier.Ghana, new Ghana() },
+            { CountryIdentifier.Gibraltar, new Gibraltar() },
+            { CountryIdentifier.Greece, new Greece() },
+            { CountryIdentifier.Greenland, new Greenland() },
             { CountryIdentifier.Iraq, new Iraq() },
             { CountryIdentifier.Ireland, new Ireland() },
             { CountryIdentifier.Israel, new Israel() },