Philippine air force Capt. Walter Cabatingan, Air Force Chief of Engineers Office chief of equipment and maintenance, smooths concrete into a mold during a tilt-up workshop May 18, 2016, at Andersen Air Force Base, Guam. The Pacific Unity 16-1 tilt-up workshop is a Pacific Air Forces-led engagement focusing on a series of civil engineering subject-matter expert exchanges designed to increase partner capabilities, military relations and regional stability for the Indo-Asia-Pacific region. Airmen reviewed planning, scheduling, safety, site surveying, concrete work, crane operations and other aspects of construction that may become a factor. (U.S. Air Force photo by Airman 1st Class Jacob Skovo)