Hitler as a whole could be described as a disturbed genius. Because of his thirst for power, he was able to take control of Germany. Hitler needed the faith of other powerful government figures to be able to make his dreams of Furher a reality. With a lust for power, it led him to purge the SA to gain the best interest of the German Army and Hindenburg, which allowed him to amalgamate the power he needed to start working towards his goal.
In letter made to the S. A. by Hitler in July, 1933 (shortly after he became chancellor of Germany) where he tells them to calm down and stop trying to replace the army(doc. 1a), which is completely biased as he just wants the favor of the army and later Hindenburg. A returned address directed toward Hitler shows that he had taught Hitler everything about war and tells him that the SA will definitely be the new army due to the revolution they brought, which would not fly with the German army or Hitler (doc. 3a). We then see the response of Hitler where he thanks Ernst for all his hard work and help which can be interpreted as a final goodbye for the SA as they were soon to be purged (doc. 4a). Hitler gave the SA one more chance by offering them a different role instead becoming the army this was probably the last chance that they would receive and any other objections would result grievously (doc 1b).
The support gained from the army was crucial to Hitler's control of power because the army was the center point of Germany and all Germans found pride. Thus by supporting its intentions the suspicion around Hitler's chancellorship was cleared and the pathway of Nazi Germany opened up, We see this support growing slowly as the Reichswehr order officers to wear eagles and swastikas (doc 2b.). Then General von Blomberg openly respects the fuehrer as he says that Adolf Hitler being a WW1 vet was always a German Army man (doc. 4b) which is completely biased as Hitler scratched the army's back they scratched his. Later on...