Seeing as Pennsylvania is part of the United States and the United States fought for the Allies in World War I, yes.
no
America helped it's allies during World War 2 by shooting people and stuff. they were smart.
The Americans helped the Allies by sending resources to them during WWI.
The invention of the finest 1945 Chardonnay
Americas allies did most of the fighting, do your research and stop asking broad questions
Allies in World War II
Marshall Plan would help Europe quickly rebuild and modernize for the war.
That question doesn't make one bit of sense.
To help allies and establish stable economy and political conditions
Well they did have Allies because back in world war 1 they asked us and we agreed so then we help them fight the Germans and we would've some say they would of lost the war if we didn't help them
Later in the war they joined the Allies as an effort to help them win the war.
It provided the food, guns, planes, ships, medicines etc to win the war