[Editor’s Note:  Grizzled readers of the Mad Scientist Laboratory will recall their well-thumbed copies of the forty-year-old FM 100-2 series, The Soviet Army.  U.S. Army Soldiers and Leaders from the Cold War-era were expected to know their Soviet adversaries’ Operations and Tactics; Troops, Organization, and Equipment; and Specialized Warfare and Rear Area Support cold — as international tensions and crises could (and frequently did!) escalate to trigger alerts at a moment’s notice, sending units racing forward from their garrisons to occupy their GDP positions… ready and prepared to counter Soviet and their Warsaw Pact allies’ forces advancing across the Inner German Border (IGB)! Flash forward to today’s Army, where knowledge of the Operational Environment (OE) and the five National Defense Strategy Threats — China, Russia, North Korea, Iran, and Violent Extremist Organizations (VEOs) — remain critical competencies within the Profession of Arms. In this episode of The Convergence podcast, Army Mad Scientist partnered with the Breaking Doctrine podcast from the Combined Arms Doctrine Directorate, U.S. Army Combined Arms Center (CAC), to co-host a fascinating discussion with General Gary M. Brito, Commanding General,  U.S. Army Training and Doctrine Command (TRADOC), Colonel Rich Creed (USA-Ret.), Director, Combined Arms Doctrine Directorate, U.S. Army CAC, and Mr. Ian Sullivan, Deputy Chief of Staff Intelligence, TRADOC G-2, exploring how understanding the OE and knowing Threat Doctrine remain core Soldier and Leader competencies, underpinning how the Army will fight and win decisively in the 21st century battlespace — Read on!] [If the podcast dashboard is not rendering correctly for you, please click here to listen to the podcast.] General Gary M. Brito assumed duties as the 18th Commanding General, United States Army TRADOC, on September 8, 2022.  He is responsible for building and sustaining a highly trained, disciplined, and fit Army by acquiring the best people, training the most lethal Soldiers, developing the most professional leaders, guiding the Army’s culture, and shaping the future force.  COL Rich Creed was commissioned an Armor officer in 1989 from the U.S. Military Academy and retired from active duty in 2021 after a variety of command and staff assignments from platoon to four-star level. Mr. Creed has been the Director of the Combined Arms Doctrine Directorate at Fort Leavenworth since December 2016, where he helped write and edit the last two versions of the Army’s capstone operations publication, FM 3-0. He was one of the authors and editors of ADP 6-22 (Mission Command: C2 of Army Forces) and ADP 3-13 (Information). Mr. Ian Sullivan is the Deputy Chief of Staff Intelligence, TRADOC G-2. He holds a BA from Canisius University in Buffalo