Answer :

Hitler promised the germans their land back, their security, their lives if and only if they followed his orders and follow his oppression against the jews. Who were seen as the root of evil and were sent to concentration camps to be worked until death, he also promised them everything they had before the treaty of Versailles. He kept his promise by going against the treaty and raising an army and taking over check Slovakia.  
assassin4234
Hitler promised his people multiple things. These were:
1. A stable government (since their economy was destroyed by the Treaty of Versailles)
2. A population of the "dominant" race (white blondes)
3. End Treaty of Versailles and stop reparations to other countries


How he acted on this:
1. Created the labor camps as well as infiltrated other countries and stole their resources
2. Created the labor and death camps to eliminate non-"perfect" races (including Jews)
3. Re-armed the military, took other countries, stopped paying other countries, started movements, broke all of the limits the Treaty of Versailles held Germany under.