In regards to Ukraine, Syria, N. Korea, I would like to point out that the founders of the USA had the policy of non-intervention.
"Peace, commerce, and honest friendship with all nations-entangling alliances with none." - Thomas Jefferson's inaugural speech
That said, if I had control of a nation that magically emerged from the sea and we absolutely must have three alliances with any three nations I could choose, then. . .
* United States of America - world's best gunfighters
* Federal Republic of Germany - world's best engineers
* Russian Federation - world's craziest drunks
These three advantages would be of great benefit to ensure our alliance's domination over all things.