Chief Warrant Officer 3 Andrew Lau, 1st Battalion 228th Aviation Regiment, explains the functions of the CH-47 Chinook, during a visit to the region, April 27, 2019, at Soto Cano Air Base, Honduras. The delegates visited U.S. allies in Central and South America to update members of congress on the regional stability and preserve relationships in the area. (U.S. Air Force photo by Staff Sgt. Eric Summers Jr.)