| Operation Sky Monitor | |
|---|---|
| Part of the NATO intervention in Bosnia | |
 A NATO E-3 Sentry, the aircraft type used for monitoring in Operation Sky Monitor | |
| Objective | Monitoring of no-fly zone over Bosnia |
| Date | October 16, 1992 – April 12, 1993 |
| Executed by | Allied Forces Southern Europe |
Operation Sky Monitor was a NATO mission to monitor unauthorized flights in the airspace of Bosnia and Herzegovina during the Bosnian War. The operation began in response to United Nations Security Council Resolution 781, which established a ban on the use of military aircraft in Bosnian airspace, and requested the aid of member states in monitoring compliance. Beginning on October 16, 1992, NATO monitored violations of the no-fly zone using E-3 Sentry NAEW aircraft based in Germany, Italy, Greece, and the United Kingdom. The operation documented more than 500 violations of the no-fly zone by April 1993.[1] In response to this high volume of unauthorized flights, the Security Council passed Resolution 816, which authorized NATO to enforce the no-fly zone, and engage violators. In response, NATO deactivated Sky Monitor on April 12, 1993, transferring its forces to the newly established Operation Deny Flight.