Code Geass: Hangyaku no Lelouch (2006 - 2008)

The story takes place in alternative historical realities. Britannia is a powerful but very warlike country. Almost the entire state is located on the American continent, but the British Isles become part of the European Union. In 2010, the British Empire declares war on Japan. The subjects of Britannia are considered a privileged class that discriminates against the Japanese population. Not everyone considers this fair.