They had signed a treaty. However they did very little to act in concert with one another during the war. Each country had different goals that did not mesh well enough to force them both to come together in formulating a combined strategy. They were referred to as the Axis Powers.
Hey!~
I believe that the Monroe Doctrine should not be followed today. <span>The </span>Monroe Doctrine<span> was a </span>United States<span> policy of opposing </span>European colonialism<span> in </span>The Americas<span> beginning in 1823. There is no need for that, for all people are created equal and we shouldn't be blocking them out. They have the right to come in unless they mean harm.
Hope this helps and have a great day!
-Lindsey</span>
The answer is "Has to be approved by 2/3 of the congress" Hope it helps.