What was an effect of the us increase in production during world war ii? it gave the allies the advantage to win the war. it gave the axis the advantage to win the war. it kept us factories busy throughout the world. it kept only us soldiers well equipped.

The factories in ww2 supplyed all of the allied forces with weapons and other tools also it made people have the sense of national pride the mass production that the us had allowed the allies to overwhelm the axis powers So the answer was it gave the allies the advantage to win the war

The correct answer is that it gave the Allies the advantage to win the war. What happened was namely that - because the US factories was working at full speed (because they weren't being bombarded), they were able to afford to supply US troops as well as the troops of allied forces.