The Turks have been our allies since the beginning of the Cold War. The have provided the United States with an air base(which contains B-61 nuclear weapons and at one time Jupiter IRBM missiles) within striking distance of Moscow and other important Russian ICBM bases. This is the perfect spot because it covers both Europe and it is able to strike missiles from Russia.
And they have been pretty good allies, but I don’t think their country is politically stable enough with the Muslim influence to be able to count on against the Muslims in a crunch.