On August 2, 1934, Adolf Hitler became commander-in-chief of the German Reichwehr. An excerpt from the article:
"About 9 a.m. on August 2, 1934, the much anticipated death of President Hindenburg finally occurred. Within hours, the Nazi Reichstag announced the following law, back-dated to August 1st:
The Reich Government has enacted the following law which is hereby promulgated.
Section 1. The office of Reich President will be combined with that of Reich Chancellor. The existing authority of the Reich President will consequently be transferred to the Führer and Reich Chancellor, Adolf Hitler. He will select his deputy.
Section 2. This law is effective as of the time of the death of Reich President von Hindenburg.
The law was technically illegal since it violated provisions of the German constitution concerning presidential succession as well as the Enabling Act of 1933 which forbade Hitler from altering the presidency. But that didn't matter much anymore. Nobody raised any objections. Hitler himself was becoming the law.
Immediately following the announcement of the new Führer law, the German Officer Corps and every individual soldier in the German Army was made to swear a brand new oath of allegiance:
"I swear by God this sacred oath: I will render unconditional obedience to Adolf Hitler, the Führer of the German Reich and people, Supreme Commander of the Armed Forces, and will be ready as a brave soldier to risk my life at any time for this oath."
The unprecedented oath was to Hitler personally, not the German state or constitution, as were previous Army oaths. Obedience to Hitler would now be regarded as a sacred duty by all men in uniform, in accordance with their military code of honor, thus making the German Army the personal instrument of the Führer."