If two countries go to war, how can the opposing army know which army is theirs without accidently shooting their own teammates?

Question

Does every army in every country have a different uniform? Or do they all wear camouflaged suits or something.

In: 729

Answer 1

My grandfather was in the Pacific in WWII – he ran wire across captured islands for communication. He later worked the rest of his life for Bell Telephone. He never really talked much about the war, but I remember one story he told me. He remembers seeing US Navy ships shelling a beach where there were US soldiers on it. I dont often like to remember that story.