Why was the entry of the united states considered a turning point in the war in world war 1?

What was herbert hoover and the food administration do in wwi?

When conducting research for forming a hypothesis, which practice should historians follow?

Why did the meiji reformers want to modernize japan a) to colonize weaker nations in south east asia b) to allow western nations to protect them and treat negotiation c) to compete with the economics and military of western nations d) to replace additional prices with weston culture