Can those who served in the U.S. military naturalize?
Today's question from both direct email to this site and on another site is about the eligibility for those that have served in the U.S. military. Can they become Japanese citizens? There are four angles to this question: the past wars, potential future wars, whether the U.S. will let you, and whether Japan will let you. From the Japanese side, they are perfectly fine with people who have served in the U.S. (or any other country) military, with one caveat: one of the listed requirements is that you have not joined a group that encourages the (violent, non-democratic) destruction of the modern Japanese government or the modern Japanese constitution. Now, this clause is intended to refer to terrorist organizations, both foreign and domestic — ex. オウム真理教 { Ōmu Shinrikyō } ( Aleph aka Aum Shinrikyo ) or the 日本赤軍 { Nihon Sekigun } ( Japanese Red Army aka JRA ) — but it can also apply to the military forces of a hostile foreign state. So, providing that the country does not go ...