It was Winston Churchill
United States, Great Brittain, and France
the catylist that caused America to enter world war two was the bombing of pearl harbour.
World War 2
Great Britain declared war on Germany in September 1939 after Germany invaded Poland.
They and Great Britain had committed to the defense of Poland.
Japan wasn't in WW1.
what war?World War 1NovaNet: Germany invaded Belguim in order to march into Framce.
Germany Russia Brittain France Austria
yes, Britain entered the war at the beginning, the united Staes entered the war over two years later.
Please see the link. If you have time you may find it useful to dip into Vera Brittain's "Testament of Youth".
Vera Brittain, an English writer and poet, volunteered as a nurse during World War II. She is known for her memoir, "Testament of Youth," which reflects her experiences during the war.