Of what is listed Germany lost the highest percentage of its population. Their numbers, though, were no where near the percentages of what was lost by the USSR. More men were lost there. Russia actually had both men, women, and children fighting in the war. This allowed for a greater chance of more loss of life.
The greatest advantage of United States in world war II was its
ability to rapidly transition from peace to war and mass produce weapons
and war equipment at a colossal scale. This was so effective that the
USA was able to make up for time lost, and the nation was able to
effectively train the necessary forces and then exert a massive material
superiority.
America was able to build up an air force that came
to dominate the skies, and with this air superiority, it was all but
over for the enemy, the Axis forces.
Democratic government get their power from the people.
I believe it is the second one.
It provided a source of power for many kinds of machines.
I think its the first one since the british believed that the loyalist would hold their territory