The USS Ronald Reagan (CVN 76) and USS Nimitz (CVN 68) Carrier Strike Groups (CSGs) steam in formation.US Navy The US Navy recently conducted joint exercises with allies and partners in the Pacific. The 7th Fleet commander said it was "an incredible amount of power" but added that more was needed for deterrence. "Four aircraft carriers is a good number, but six, seven or eight would be better," he said. The commander of the US Navy's 7th Fleet stated recently he would like to see a lot more US and allied aircraft carriers in the Indo-Pacific region to deter rivals China and Russia, The Wall Street Journal reported.Following a multinational naval exercise in October involving two US aircraft carriers, a British carrier, and a Japanese helicopter carrier, the US Navy linked up with Japan, Australia, Canada, and Germany in November for Pacific drills.During that most recent exercise, 7th Fleet's Vice Adm.