True or false: Hitler believed that Germany would have won World War I if the military hadn't been "stabbed in the back" or betrayed by the civilian leadership ("November Criminals") that took power from the Kaiser in late 1918.

True.

Explanation:

The narrative of a shameful "betrayal" or "stabbing in the back" was a story associated with Germany´s defeat in WWI constructed as part of the manipulative Nazi party´s propaganda in the 1930s. Extreme right propaganda usually resorts to victimization and conspirative theories to manipulate historical events and people in a way that serves their political goals.  

a big one is

to appoint and regulate officers of the land and naval forces,

which caused much controversy ending the articles