The u.s did join WW2
They didnt want to risk losing their forces against the powerful Nazis.
They joined the war in 1917.
the US didn't want to get caught in in European affairs again
World War I
what threat encouraged the United States to join the allies in world war 1
The 8th of December 1941 was the date that the US joined world war 2
They joined in1941
The US didnt want war
The US didn't have much of a reason to join until the bombing on Pearl Harbor.
US Citizens rarely felt a need to join in foreign wars. Germany made it easier for the US to get involved when they declared a policy of unrestricted U-Boat activity.
The us joined ww1 in the year of 1917.
Yu mean how* not who* & the us join the ww1 cause they wanted to become a world power & joinin world would defently help.
joined in 1942
the sinking of the Lusitania.