U.S. Army Brigadier General Phil Brooks, Deputy Chief of Staff for Operations at NATO’s Allied Rapid Reaction Corps, and German Army Lieutenant Colonel Thorben Bunjes, a liaison officer for the Bundeswehr 1st Armoured Division, synchronize plans during STEADFAST LEDA 2021 in Sennelager, Germany, Nov. 23, 2021. STLE21 is a NATO exercise to increase interoperability and operational effectiveness in multidomain operations of warfare across the Alliance while testing emerging technologies. (Photo by British Army Sergeant Paul Shaw)