President Bush has vowed the U.S. will keep a large number of troops in Iraq well beyond his presidency. In a prime-time address last night, Bush said he foresees what he called “an enduring relationship” between Iraq and the United States. Bush made the call in announcing he would withdraw a limited number of troops by July of next year. But administration officials quietly announced part of the so-called troop “surge” contingent could remain and even more troops could be sent. That would mean a larger occupation next summer than just before the surge began earlier this year. President Bush also singled out progress in Anbar province, where former Sunni insurgents have switched sides and are now fighting al-Qaeda in Iraq.