US Army wants doctrine for landing helicopters on Arctic ice
U.S. Army's Engineering Research and Development Center (ERDC) is developing doctrine for landing helicopters on ice, expanding operational zones by 20-25%. A recent test with a CH-47 Chinook on 21 inches of ice challenges outdated standards requiring 31 inches. This research, initiated by Jenna Williams, aims to enhance cold weather operations amid increasing Arctic tensions with China and Russia.
Two launches since yesterday, by Russia and China
Russia and China each completed launches on April 17, 2026. Russia's Soyuz-2 rocket deployed a classified military payload involving multiple spacecraft from Plesetsk, with debris falling into the ocean. China's Long March 4C launched a greenhouse gas detection satellite from Jiuquan, but details on the rocket's lower stages remain undisclosed. SpaceX leads with 46 launches this year.
Space Force releases two documents focused on 2040 planning
U.S. Space Force released two documents: Future Operating Environment 2040 and Objective Force 2040. Gen. B. Chance Saltzman emphasized the need for adaptation against evolving threats, particularly from China. The documents outline future capabilities, mission objectives, and a framework for personnel and infrastructure growth, aiming to align priorities and stimulate discussion within the defense community.