In 1942, a 138-lb kid from Iowa showed up to basic. Eight weeks later — no weights, no gym — he could run 5 miles in boots, bang out 100 push-ups, and pack a 190-lb man through mud like it was nothing. That’s what the standard 1940s U.S. military calisthenics program did to an entire generation. Zero equipment. Pure brutality. The toughest men the world has ever seen. We dug up the exact drills, progressions, and finishers they used. It’s all in the new article.

Combat load training focuses on preparing individuals to effectively carry, maneuver, and operate with the gear and equipment required in real-world tactical scenarios. This training emphasizes weight distribution, endurance, and movement efficiency while wearing body armor, weapons, ammunition, and other mission-essential items. By simulating the physical demands of actual combat situations, practitioners build strength, stamina, and familiarity with their load, reducing fatigue and improving overall performance under stress. Incorporating combat load training into regular practice ensures readiness and adaptability in dynamic environments.

Light infantry fitness is not something you will acquire with traditional exercise routines. It will require you to be a bit of a tactical athlete, and robust.