I am playing SRP v.5 on the hard setting and I noticed that I am gaining .4 manpower per month as the US. I have only played through 1942 but I did join the allies in 40 when Britian invited me. I figured that maybe once I went to war my manpower would go up but it didnt. Is this normal? Is there a set time that manpower levels go up? I mean I expect hard to be challenging but this is kinda rediculous.