Quoting Captain Holmes again how the course of the War was changed the nature of our work:
“The virtual destruction of the Japanese Navy and the drastic reduction in the numbers of marus brought about changes in radio intelligence. It also forced the Japanese to suicide weapons of many varieties. Most effective were kamikazes which, in April and May 1945, took off from Kyushu in mass flights to attack U.S. ships in the vicinity of Okinawa. Kamikazes were the most serious threat the Navy faced during the war.”
Clay Blair, Jr., who served as a Quartermasters, 2nd Class on submarines in WWII, wrote a 1,000 page book subtitled, The U.S. Submarine War Against Japan. He titled his book, SILENT VICTORY, because the skippers and crews like their comrades in radio intelligence were not permitted to discuss their exploits until after the War was over. In summary:
Continue reading “Silent Victory Beneath the Waves: Submarines, Radio Intelligence, and the Hidden War Against Japan During WWII”
Did the Imperial Japanese Navy use a mock raid on Pearl Harbor that was conducted on February 7, 1932 as a blue print for their December 7, 1941 attack?
Continue reading “The First Attack: Pearl Harbor, February 7, 1932”
William Frederick Halsey, Jr.
30 October 1882 – 16 August 1959
The significant airfield repair and upgrade work might support frontline fighters in the future, as the U.S. develops distributed basing to counter China in the western Pacific.
Continue reading “Revival of WW2-Era Tinian Airfield Picks Up with ‘Rehabilitation’ Work”
On September 30, 2005, the Naval Security Group Command (NAVSECGRU / Naval Security Group) was formally disestablished. Twenty years later—on September 30, 2025—that date stands as a milestone for reflection on one of the U.S. Navy’s most consequential signals-intelligence and cryptologic organizations. This article traces NAVSECGRU’s origins, evolution through wartime and the Cold War, its transition into the information-age Navy, and the legacy that followed its 2005 disestablishment.
Continue reading “Today marks the 20-year anniversary of the disestablishment Naval Security Group Command”
Station HYPO 