"Wars have been started over less than a phone call," Bucky points out. Every time a bunch of petty, rich and powerful people have a disagreement, the poor march rank and file to their deaths. He doesn't know what was discussed though so it's hard to draw conclusions without then knowing what each other saw in much greater detail.

"How recent? Pretty sure phones have been around since before World War I." So, yes. Bucky tips his head a bit. How many wars had there been since then? "Russia, Ireland, Spain, World War II, India... um, Korea... Vietnam. Israel and Palestine?" Basically, a lot. Not all of them concerning America but he can't be absolutely sure that the soldier whose eyes he saw through was American. Hard to narrow down which conflict it was, in any case.