Which two sentences, taken together, provide the BEST evidence to support the idea that many regular citizens supported the Crusades?

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.

not all were fit for battle and were weak.