DO HARD THINGS

The Combat Fitness Blog

18X Contract Length: How Long the Army Special Forces Pipeline Really Takes

18X Contract Length: How Long the Army Special Forces Pipeline Really Takes

18X Contract Length: How Long the Army Special Forces Pipeline Really TakesCombat Fitness
Published on: 30/03/2026

How long is an 18X contract? Most Green Beret candidates owe 4–5 years active duty. See the full pipeline timeline — OSUT, SFAS, and the Q Course — explained.

Military Fitness
Navy Weight Requirements: Height/Weight Chart & 2026 BCA Guide

Navy Weight Requirements: Height/Weight Chart & 2026 BCA Guide

Navy Weight Requirements: Height/Weight Chart & 2026 BCA GuideCombat Fitness
Published on: 30/03/2026

Navy weight requirements for 2026: how the height/weight chart, the new waist-to-height ratio screen, and the BCA work — and how to check if you qualify at home.

Military Fitness
ODA Meaning: Army Special Forces A-Team Structure

ODA Meaning: Army Special Forces A-Team Structure

ODA Meaning: Army Special Forces A-Team StructureCombat Fitness
Published on: 12/02/2026

ODA stands for Operational Detachment Alpha - the Army's 12-man Special Forces A-Team. Learn what an ODA is, its 18-series roles, and its mission.

Military Fitness
Concurrent Training vs Block Periodization: How to Choose

Concurrent Training vs Block Periodization: How to Choose

Concurrent Training vs Block Periodization: How to ChooseCombat Fitness
Published on: 22/01/2026

Concurrent training vs block periodization: compare how each structures strength and endurance, see the interference effect explained, and choose the right model for your goals.

Military Fitness