Question

Great Britain and France feared war was eminent with the annexation of

Answer 1

I believe the answer is Austria.

Answer 2

Answer:

Czechoslovakia in March 1939

Explanation:

Britain saw that Hitler was lying in Munich Agreement when he agreed to not capture the remainder of Czechoslovakia.

Germany has violated the Treaty of Versailles by invading Rhineland (France) in 1936. With the annexation of Austria and the capture of the Sudetenland in 1938, to the control of Czechoslovakia in March 1939 and with the annexation of Poland on September 1939,  Britain declared the war against Germany after two days.