with·draw·al (wĭ th -drô'əl, wĭth-) n. The act or process of withdrawing, as: A retreat or retirement. Retreat of a military force in the face of enemy attack or after a defeat. Detachment, as from social or emotional involvement. A removal from a place or position of something that has been deposited. Discontinuation of the use of an addictive substance. The physiological and mental readjustment that accompanies such discontinuation. Discontinuation of the use of an addictive substance. The physiological and mental readjustment that accompanies such discontinuation. The act or an instance of retracting or revoking: feared the withdrawal of his parents' permission. Coitus interruptus.http://dictionary.reference.com/browse/withdrawal
Top aides to President Obama on Sunday signaled that some U.S. troops could start coming home from Afghanistan as soon as July 2011, but most would likely remain there for several years.http://www.cnn.com/2009/POLITICS/12/06/us.afghanistan/index.html
In appearances on all the major talk shows, Cabinet officials and military advisers clarified the president's position after he walked a political tightrope by announcing he will send 30,000 more troops to Afghanistan and that some will start coming home in 19 months.
National Security Adviser Gen. James Jones told CNN's "State of the Union" that the July 2011 start of withdrawal was "not a cliff, it's a ramp" for beginning to turn over security responsibility to Afghan forces.
Noting the U.S. strategic interests in the region, including nuclear power Pakistan next door, Jones said: "We're going to be in the region for a long time."
Obviously, we need to revise the dictionary definition, so that the promised "withdrawal from Afghanistan in July 2011" can be redefined as "start withdrawing but most likely remain there for several years".