I do not seek to criticize our British friends, a critical ally; they are working hard to do what's best for their citizens.
Israel, of course, is a critical ally in proximity to Iran.
The Bush administration understands the importance of a credible national defense and is rightly helping a critical ally feel secure.
But when faced with the possibility that one of Washington's critical Mexican allies might be linked to the traffickers, the officials gave the matter little consideration.
Politicians perceive life as an endless series of battles in which today's opponent may be a critical ally in a fight somewhere down the road.
The failure of a critical ally in the Muslim world to address the major concerns of Washington has put the relationship under increasing pressure.
India, suddenly a critical ally for the West, has vowed to block a new round of talks unless they focus on helping poor countries.
He also said it would "undermine public support among critical allies."
Now 72, he was a close but critical ally of President Sukarno in the revolution, favoring a professional, impartial army.
The unstated assumption is that Seoul would pay any debts to its critical military ally before it repaid other lenders.