Question

Great Britain's stated reason for declaring war on Germany in 1914 was the

Select one:
a. French attacks on German colonies.
b. U.S. entry into the war.
c. German invasion of Belgium.
d. Serbian assassination of Archduke Franz Ferdinand.

Answer 1

C.) German invasion of Belgium.

Belgium was neutral during WWI.  Britain was scared that if Germany ruled Belgium, they would be a threat to their country.  Once Germany attacked France by going through Belgium, Britain couldn't ignore Germany's actions anymore.  Britain decalred war on Germany because of their actions.

Hope this helps.