"New Jersey" provided artillery support for a major air and surface strike on Wonsan 1 May, as 7th Fleet planes both attacked the enemy and spotted for the battleship. She knocked out eleven Communist shore guns that day, and four days later destroyed the key observation post on the island of Hodo Pando, commanding the harbor. Two days later Kalmagak at Wonsan was her target. "New Jersey"s tenth birthday, 23 May 1953, was celebrated at Incheon with President and Madame Rhee, Lieutenant General Maxwell D. Taylor, and other dignitaries on board. Two days later "New Jersey" returned to action along the west coast at Chinampo to knock out harbor defense positions.