31st Engineer Battalion. Combat. Engineer Branch. Built Different.
The 31st Engineer Combat Battalion has served the United States Army since 1940, constituted at Fort Belvoir, Virginia and redesignated as the 31st Engineer Combat Battalion on 15 December 1941. Combat engineers are the Army’s most versatile soldiers — trained to fight as infantry and simultaneously enable the maneuver force through breaching, bridging, route clearance, and obstacle emplacement. The Engineer Branch castle insignia represents that dual identity: the warrior and the builder, combined in one soldier.
This mug pairs the 31st Engineer Battalion (Combat) identity with the Engineer Branch insignia — the castle that every engineer soldier earns. It’s the version for the soldier who wants both the unit and the branch represented: the 31st’s heritage and the engineer tradition behind it.
Product Details
- Design: 31st Engineer Battalion (Combat) — Engineer Branch insignia
- Size: 15oz ($24.95)
- Finish: Glossy white ceramic — clean, durable, fade-resistant
- Material: 100% ceramic, BPA-free, lead-free
- Handle: C-shaped easy-grip handle
- Care: Microwave safe · Dishwasher safe
- Vendor: Printify — print-on-demand fulfilled
Who It’s For
Veterans and active soldiers of the 31st Engineer Battalion, Engineer Branch soldiers, combat engineers of all eras, Fort Belvoir alumni, and military families honoring engineer service. Choose this version to represent both the 31st Battalion and the Engineer Branch — the castle and the unit, together on one mug. Distinct from the DUI-only and Cold War Service versions for those who want the branch insignia front and center.
About the Unit
The 31st Engineer Battalion was originally constituted as the 31st Engineer Company on 1 July 1940 and activated at Fort Belvoir, Virginia — the U.S. Army’s center of engineering excellence. It was reorganized and redesignated as the 31st Engineer Combat Battalion on 15 December 1941. The Engineer Branch insignia — a turreted castle — is one of the oldest branch insignia in the U.S. Army, representing the engineer’s role as both a combat soldier and a builder. Combat engineers are trained to fight as infantry while enabling maneuver through breaching, bridging, route clearance, and obstacle emplacement — the Army’s force multipliers in every conflict.
Care Instructions
- Dishwasher safe · Microwave safe
- Hand washing recommended to preserve print longevity
- Do not use abrasive scrubbers on printed surface