Why did Germany lose in World War I?

Germany went into the First World War with the advantage of a very large, very well-trained, and very well-equipped army. One-on-one, they could almost certainly have defeated any other country in the world - but they weren't fighting just one enemy.

Fighting silly odds. Deciding to attack Russia was bad idea, as well as declaring war on the US. Both of these countries could substantially outproduce Germany. Although Germany took the initiative both times, they may have had a little choice. so thats why. #believe