Just after the E.U. had
successfully negotiated (mostly) free-trade treaties with India and a few South
American state-level countries, the E.U. and U.S. were at odds on the ownership
and control of Greenland to such an extent that the NATO alliance was strained
if not fraught. The resulting power-vacuum with respect to military alliances could
be filled by the E.U. strengthening its federal foreign policy and defense
powers and forming a military alliance with India and even South America in
order to put less reliance and thus pressure on the weakened NATO alliance. This is not to say that new military alliances
would necessarily or even probably form; rather, such alliances would be in
line with the dynamics and logic of power itself at the international level. I contend
that the unbalanced balance of federal-state power in foreign policy and
defense in the E.U. was a major contributory factor of the dominance of the
U.S. in NATO.
The full essay is at "On America's Dominance in NATO."