Austin emphasized that this operation showcased the U.S.’s capability to target and destroy well-protected underground facilities. “The deployment of B-2 Spirit bombers highlights our ability to strike these targets whenever necessary, regardless of how fortified or hidden they are,” he said in a late-night statement.
A report from U.S. Central Command confirmed the involvement of Navy assets, stating that the operation targeted advanced weapons used by the Houthis to threaten military and civilian vessels in international waters. Striking such “hardened” sites requires bunker-buster bombs with heavy steel casings, designed to penetrate layers of rock or concrete before detonating.
The B-2 is the only aircraft in the U.S. arsenal capable of carrying the 30,000-pound GBU-57 Massive Ordnance Penetrator (MOP), designed to reach depths of 200 feet underground. However, the Pentagon declined to confirm if this specific weapon was used in the operation.
There are only 19 operational B-2 bombers, all based at Whiteman Air Force Base in Missouri. To participate in the Yemen mission, they either flew directly from Missouri with in-air refueling or operated from a closer, undisclosed location.
In recent months, the Houthis have increased maritime attacks in solidarity with Hamas, targeting civilian vessels. U.S. forces have responded by intercepting Houthi drones and missiles and launching airstrikes on their missile systems and radars since mid-November.
