December 7, 1941 - when the Japanese bombed Pearl Harbor.
Since America was only involved with one Japanese War you must be referring to WWII. In that case, Japan attacked America with airplanes at Pearl Harbor on December 7, 1941. That's why Americans got involved.
Seeing as Australia had been at war since 1939, the attack at Pearl Harbour, December 7 1941, obviously, had no effect on Australia's being involved in the war in the pacific.
== == Of the 7 continents, only Antarctica was NOT involved in fighting in WW2. I'm sure what you meant to say was................What countries, on what continents, were involved in World War Two?
The US was attacked by Japanese airplanes on Dec 7, '41.
December 7, 1941 - when the Japanese bombed Pearl Harbor.
7
Dec 7, '41.
Walker Texas Ranger - 1993 War Cry 7-4 was released on: USA: 17 October 1998
December 7, 1941
The United States got involved in World War 2 after the bombing at Pearl Harbor on Sunday, December 7, 1941.
The cowboys and Indian war
December 7, 1941 Pearl Harbor
The cowboys and Indian war
The US got involved after declared war onto Japan on December 7, 1941
9 years
Since America was only involved with one Japanese War you must be referring to WWII. In that case, Japan attacked America with airplanes at Pearl Harbor on December 7, 1941. That's why Americans got involved.