2 (Japanese: 第二次丹作戰, Dainiji Tan Sakusen) was a long-range kamikaze mission directed at the main Allied naval fleet anchorage at Ulithi Atoll in the western Pacific on 11 March 1945 during the Pacific campaign of World War II.

The aircraft were bound for the US Naval Base Ulithi on a one-way trip at the limits of their range in an attempt to destroy the Fifth Fleet carriers at anchor there.

Each of the planes carried an 800 kg (1,700-pound) bomb, which they intended to deliver by crashing onto the flight decks.

Two of the twenty-four aircraft reached Ulithi, arriving after nightfall and achieving complete surprise.

There were no deaths in the attack beyond the aircraft's crew, though several servicemen were injured from debris and ignited fuel.