Getting Canadian Citizenship back

Quote: Actually, you can, but Britain only allows you to have dual nationalities, so if you want to get your Canadian, you will have to renounce either you US or British nationality. (I know one Japanese Englishman who was born in the UK to both Japanese parents who subsequently became a Canadian citizen.) Britain notified him that he had to give either being Canadian or Japanese to keep his British nationality. Japan knowing not of his Canadian citizenship, and to keep his Japanese nationality, he kept his Japanese and Canadian and renounced his British one, since he was only born in England but moved back to Japan before he was 1 years old. I think he did a stupid thing by giving up the world's best passport for something lesser.