What were germany's military advances in world war 2?

German military technology during World War II increased in terms of sophistication, but also cost, mechanical unreliability, and time to manufacture. Nazi Germany put effort into developing weapons; particularly aircraft, rockets, submarines and tanks during the war.

Explanation:

put effort into developing weapons; particularly aircraft, rockets, submarines and tanks during the war.

Explanation:

i know my history very well  

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories