Internment was a bit complicated, but my understanding is that the US army wouldn't turn away young Japanese-American men who were willing to fight in Europe.
There was also a secret program where second generation men served as translators for US naval intelligence in the Pacific. They translated intercepted messages and assisted with prisoner interrogations. They were also in very real danger of being mistaken by the enemy by US or allied troops. The existence of this program was only revealed in the 1980s. If anyone is interested, google "Nisei linguists" or check out these references
https://www.nps.gov/goga/blogs/nisei-linguists-in-world-war-ii.htm
https://history.army.mil/html/books/nisei_linguists/CMH_70-99-1.pdf
I thought there was a tangential reference to that recent question about whether there's a critical mass of water to corpses that people find objectionable.
The example: There are plenty of corpses in the ocean, but people will swim in it. If there were one corpse in a pool, most people would decline the invite that particular pool party.
Mixed with that very recognizable graphic of Saddam in his hiding hole. And balls, for reasons that escape me.
edit: my friend is also a little confused.