Great Britain and France responded to Hitlers invasion of the Sudetenland by doing what

They both decided to declare war on Germany in 1939.

Explanation:

this is what was decided by so-called Munich crisis (October 1938): Italy, England, France and Germany. They decided to give Hitler Sudetenland without a war to assure peace for themselves.

Explanation: This strategy did not work out because this strategy was motivated by fear. Germans occupied Sudetenland and then created Protectorate Bohemia and Moravia.

"act of congress" : ) hope this

i think that it would be tenth of the first