Final answer:
Germany voted on annexing Austria before German troops moved into Austria. This suggests that the German troops were sent to ensure the implementation of the annexation.
Step-by-step explanation:
In March of 1938, Germany annexed Austria, an event known as the Anschluss. German troops moved into Austria after the annexation. The difference in dates suggests that the German troops moved into Austria after the Germans voted on annexing Austria. This shows that the German troops were sent to ensure the implementation of the annexation, as voted by the German people.