The White House is pushing for a tighter budget for the Department of Defense that would cut $400 billion in spending through 2023. Some observers say the cuts are possible by limiting future spending increases. "This is easily absorbable, and it's not really a cut," said Gordon Adams, a professor at American University. However, other experts warned that the cuts might require the U.S. to reduce the size of the military. The White House has directed the DOD to review the proposal before it makes decisions on spending. Meanwhile, the budget proposed by Defense Secretary Robert Gates calls for just $78 billion in cuts over five years.