the russian army has a foreign legion but you have to know russian. additionally, with any military you have to medically qualify. they'll find things you didn't even know you have so i wouldn't buy a one way flight to moscow.  you would honestly just be better off enlisting in the peruvian military. war is hell and nothing like people make it seem. it's not like the movies where you die bleeding out in a field peacefully, what is more likely to happen is that you get your insides turned out by a hyhyl drone without even firing a shot.  from somebody who has been in war, please don't do this, it is not worth it.
Japan