When it comes to keeping military installations safe and operational, the vital work of structural engineers often goes unnoticed. Yet these professionals form the backbone of every building, bridge, and facility that supports the Department of Defense’s mission. Donghyuk Chai, Supervisory Civil (Structural) Engineer, U.S. Army Corps of Engineers – Far East District (FED), is one such individual whose quiet but powerful contributions impact the lives of countless military families across South Korea.