Operation Christmas
They believe that war is hell, therefore if you can divert the enemy's attention to something more beneficial, perhaps they will decide to end the conflict? There is proof it is effective. Consider Operation Christmas. The military decided to decorate some Christmas trees as a means of fending off the Colombian guerilla forces.
Soldiers would select large trees in the dense forests where the guerilla forces were known to operate and cover them in countless Christmas lights. Even commercials were made from the footage. If Christmas can come to the jungle, you can return home, a banner would light up and the lights would turn on in response to movement. It demobilizes. Christmas is a time when anything is possible. About 300 guerillas, or 5% of their overall force, gave up and returned home as a result of the tactic. The following year, they employed a similar strategy, but another 180 withdrew.