Shows of force have historically been undertaken mostly by a military actor unwilling to engage in all-out hostilities, but fearing to 'lose face' (to appear weak).
By performing a carefully calculated provocation, the opponent is to be shown that violent confrontation remains an option, and there will be no backing off on the principle that the show of force is to defend.
[2] Shows of force also work on a smaller scale: military forces on a tactical level using mock attacks to deter potential opponents, especially when a real attack on suspected (but unconfirmed) enemies might harm civilians.
As an example, most air "attacks" during Operation Enduring Freedom and Operation Iraqi Freedom have been simple shows of force with jet aircraft dropping flares only while making loud, low-level passes.
A 2009 12-month report for Afghanistan noted 18,019 strike sorties by US military aircraft, with weapons use for only 3,330 of the missions.