A U.S. Army UH-60 Black Hawk helicopter with Joint Task Force-Bravoâs 1st Battalion, 228th Aviation Regiment, deployed in… https://www.rawpixel.com/image/8727991/photo-image-public-domain-nature-landscapeFree Image from public domain licenseChief Warrant Officer 3 Andrew Lau, 1st Battalion 228th Aviation Regiment, explains the functions of the CH-47 Chinook… https://www.rawpixel.com/image/8741502/photo-image-shirt-public-domain-peopleFree Image from public domain license