U.S. Soldiers with the 135th Forward Support Company, 3rd Battalion, 27th Field Artillery Regiment, conduct a High Mobility Artillery Rocket System convoy movement, as part of a HIMARS Rapid Infiltration simulation during Exercise Arcane Thunder 23 on Capu Midia Training Center, Romania, Sept. 4, 2023. AT23 is a 2nd Multi-Domain Task Force exercise taking place with U.S. Army and multinational partners from Aug. 28 to Sept. 8, 2023, in Mainz-Kastel, Germany; Ustka, Poland; and Mihail Kogălniceanu, Romania. As part of the U.S. Army’s Project Convergence – Europe campaign to evaluate the progress of the service’s modernization efforts, this exercise will validate and test the continuous integration of effects in various domains, including air, land, sea, space, and cyberspace. (U.S. Army Reserve photo by Spc. Andrew Mendoza)