Answer:
-Rockets
The Nazis had created developed the first rockets which were used to level Britain during the Battle of Britain. These rockets were called V2 Rockets. It had been the first of a long-range guided ballistic missile. These missiles were revolutionary and did not need planes to bomb a target.
-Jet Engine Aircraft
The Nazis once again developed Jet engines they had put in warplanes to make them significantly go faster than any other plane in use. They could easily take down Allied bomber planes without receiving any damages. This invention was once again revolutionary because all previous aircraft had used propeller engines.