The U.S. military’s combat power in and around Iran is increasing as the war nears its weeklong mark, with Tehran’s capabilities diminishing, according to U.S. military leaders.

“U.S. combat power is building as Iranian combat power declines,” Adm. Brad Cooper, the commander of U.S. Central Command, said during a press briefing on Thursday afternoon. “Our air dominance allows us to hit Iran’s center of gravity with overwhelming power and reach.”