Eric Shinseki

General Eric Ken Shinseki was the 34th Chief of Staff of the United States Army, and retired from the post in 2003. During his tenure, he initiated an innovative, but controversial plan to make the Army lighter and faster by creating Stryker Brigade Combat Teams.
...
General Shinseki's retirement in 2003 has been a matter of some controversy, as it became a disputed point in the first of the 2004 U.S. presidential election debates. The Democratic candidate, John Kerry, made the claim that Shinseki was forcibly retired over his estimates of troop requirements for the 2003 Iraq War, which were much larger than predicted by the George W. Bush Administration, including Secretary of Defense Donald Rumsfeld. Bush maintained that Shinseki had put in for retirement before the start of the war. Shinseki's own statement is that he was forced into retirement, though not necessarily over the specific question of troop requirements in Iraq. Shinseki is a native of Hawaii and is the only Japanese American to ever be promoted to the Army's top position.