Engineering Excellence 25 Support Squadron Builds Concealed Bunker

Publication Date 
06 Oct 2025

Article By Capt Klunder, 25 Support Squadron 

In a display of skill, teamwork, and resourcefulness, members of 25 Support Squadron, with support from 1 Engineering Support Unit (ESU), recently completed the construction of a subterranean Command Post (CP) bunker. The project showcased effective collaboration between combat engineers, construction technicians, and engineering specialists from the Air Force and Army, exemplifying the professionalism of the Canadian Military Engineers. 

The operation began with the excavation of the site by heavy equipment operators, who cleared and prepared the area for the structural build. Once the groundwork was complete, 25 Support Squadron’s carpenters and technicians moved in to construct the bunker and prepare it for backfill. 

Throughout construction, technicians were challenged to adapt the design to on-site realities, including unforeseen soil conditions and necessary structural adjustments. Despite a compressed timeline, the team persevered and demonstrated flexibility, problem-solving, and unwavering commitment to the mission’s success. 

From the excavation and compaction of the base to the installation of the access hatches and camouflage, the engineers worked diligently to minimize the footprint of the Command Post (CP). As the earth was packed back into place, the once-visible structure disappeared beneath the surface, leaving behind no trace of the extensive work below.  

In the final stages, regimental signalers integrated communications and information technology systems to transform the subterranean structure into a fully operational Regimental CP. The addition of secure networking capabilities and operational communications ensured that the bunker could serve as an active hub for command and control operations during Ex LETHAL SAPPER. This also set the conditions for Ex COLLABRATIVE SPIRIT where the bunker was the focal point and showcased the workmanship of Canadian Military Engineers.  

The successful completion of this project stands as a testament to the collaboration between 25 Support Squadron and 1 ESU, and to the enduring capability of Canada’s military engineers to deliver under demanding conditions. CHIMO!