In the opening weeks of the 2003 US-led invasion, many observers speculated that Saddam would return to Tikrit as his "last stronghold". The city was subjected to intense aerial bombardment meant to throw Saddam's elite Republican Guard troops out of the city. On April 13, 2003 several thousand U.S. Marines and other coalition members aboard 300 armored vehicles converged on the town, meeting little or no resistance. With the fall of Tikrit, U.S. Army Major General Stanley McChrystal said, "I would anticipate that the major combat operations are over."