Three 51st FW F-16s in flight.
USAF
Unknown date<div style="display: none;">Unknown date</div>
Osan Air Base website.  <a rel="nofollow" class="external free" href="http://www.osan.af.mil/photos/index.asp?galleryID=2854">http://www.osan.af.mil/photos/index.asp?galleryID=2854</a>