flickr and flickr.
It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
This image was acquired from
Keywords from Image Description:
u.s. army usarmy u.s. air force usairforce u.s. military usmilitary full scale exercise fullscaleexercise usaf usa military national guard nationalguard u.s. national guard usnationalguard photo exercise disaster crash wreck medic jlist suit chemical biological emergency management emergencymanagement crisis communications mask chem
Page 2017 Free-images.com. All images are Public Domain