1) Military camouflage
Found on
https://www.crosswordclues.com/clue/ghost-army
The Ghost Army was a United States Army tactical deception unit during World War II imitating earlier British operations, officially known as the 23rd Headquarters Special Troops. The 1,100-man unit was given a unique mission within the U.S Army: to impersonate other U.S. Army units to deceive the enemy. From a few weeks after D-Day, when they lan...
Found on
http://en.wikipedia.org/wiki/Ghost_Army
No exact match found.
