at Midway. The Japanese planned to occupy islands in the Aleutians in order to extend their defensive perimeter in the North Pacific to make it more difficult for the U.S. to attack Japan from that area. Shortly before dawn at 02:58, given the geographic latitude and longitude, Admiral Kakuta ordered his aircraft carriers to launch their strike which was made up of 12 A6M Zero fighters, 10 B5N Kate high-level bombers, and 12 D3A Val dive bombers which took off from the two small carriers in the freezing weather to strike at Dutch Harbor. One B5N was lost on takeoff from Ryujo. The planes arrived over the harbor at 04:07, and attacked the town's radio station and oil storage tanks causing some damage. Many members of the 206th were awakened on June 3 by the sound of bombs and gunfire. While the unit had been on alert for an attack for many days, there was no specific warning of the attack before the Japanese planes arrived over Dutch Harbor. With no clear direction from headquarters, gun crews from every battery quickly realized the danger, ran to their guns stationed around the harbor and began to return fire. In addition to their guns, guns and machine guns, members of the unit fired their rifles and one even claimed to have hurled a wrench at a low-flying enemy plane. Several members reported being able to clearly see the faces of the Japanese aviators as they made repeated runs over the island. The highest casualties on the first day occurred when bombs struck barracks 864 and 866 in Fort Mears, killing 17 servicemen of the 37th Infantry and eight from the 151st Engineers. When all the Japanese planes were recovered, there were erroneous reports of enemy ships in the vicinity, but search planes found no ships within the area. During the search, four Nakajima E8N2 "Dave" two-seat reconnaissance planes—launched from the heavy cruisers and —encountered U.S. fighters searching for the departing Japanese squadron. The 206th CA spent much of the night of June 3/4 moving guns down off the mountain tops surrounding the harbor down into the city of Unalaska and into harbor facilities themselves. This was partially as a deception and partially to defend against an expected land invasion. Civilian contractors offered to help and were put to work filling sandbags to protect the new gun positions. On June 4, the Japanese