I figure it was the British that sought war to bring Germany down a peg in the first war. Couldn’t stand the German dreadnought program. They got so desperate they filled the Lusitania with armaments hoping for it to get sunk.
It was more the French that had it in for Germany. Stupid mistake to ally with Russia.
Unfortunately, the Germans felt that to get to France, they had to go through Belgium, which had an agreement with Britain, thus dragging Britain (and with it, the US) into the conflict.