Yes but i dont know the reason
Not during the cold war.
Yes
The US Civil War was delayed by the Missouri Compromise, but not avoided,
Thy claimed if the US declared war on Germany then Britain would join in the struggle. This is how the US avoided war with mGreat Britain.
Possibly, however there was no International body available to appeal to for a fair shake for Cuba.
more people could have fought for abolition. And we could have made peace with them.
By diplomacy
President Wilson concluded that U.S. involvement in World War I could no longer be avoided after Germany's resumption of unrestricted submarine warfare in early 1917. This aggressive strategy threatened American shipping and lives, exemplified by the sinking of the Lusitania in 1915. Additionally, the revelation of the Zimmermann Telegram, in which Germany sought to ally with Mexico against the U.S., further galvanized public and governmental support for entering the war. These provocations ultimately compelled Wilson to ask Congress for a declaration of war in April 1917.
they guns
cause the British told them they didn't need any help but at the end they joined when they messed something of the Americans
Entering the contested Nueces Strip.
Nothing