Safe Zone An explosives sign marks the cordon around a commercial aircraft during a security assistance mission at Dover Air Force Base, Del., Jan. 13, 2023. The United States has committed more than $24.5 billion in security assistance to Ukraine since the beginning of Russian aggression. SHARE: Download: Full Size (2.34 MB) Tags: Air Force, ukraine response Credit: Air Force Airman 1st Class Amanda Jett VIRIN: 230113-F-PU288-1015.JPG Photo Gallery