At about 10 PM , well after Hitler had signed and issued the order for the invasion , GÃ ring and Hitler gave up on waiting and sent a forged telegram pretending to be a request by the Austrian Government for German troops to enter Austria . At about 10 pm , well after Hitler had signed and issued the order for the invasion , GÃ ring and Hitler gave up on waiting and published a forged telegram containing a request by the Austrian Government for German troops .