WASHINGTON (AP) — The head of the House Armed Services Committee on Wednesday told the nation’s top military brass that their credibility “is on the line” if they don’t give greater details about how budget cuts will affect national security.

“Gentlemen, for two years you or your predecessors have come to this committee describing the consequences of sequestration in generalities and percentages,” California Republican Rep. Howard P. “Buck” McKeon told the military service chiefs in opening a hearing on Capitol Hill.