Prussia won the war. Prussia made sure and be friends with Austria - Hungry, so that France would be isolated. (Guns with needles can fire ammo much faster.) Helped unite Prussia as a country into Germany.
World war 2 officially started in 1939
The achievements were that it managed to raise its own army and create its own currency and government. The failures were that it didn't manage to become internationally recognized, and they eventually became bankrupt. Another thing was that there was a lot of internal strife and division.
