map to find out about some of our troop and police contributing countries. Discover the diverse nature and range of skills of our Blue Helmets. Please, upgrade your browser. What UN military personnel do The UN has been deploying military personnel for service in peace operations since 1948 when the Security Council authorized the deployment of UN military observers to the Middle East to monitor the Armistice Agreement between Israel and its Arab neighbours. UN military personnel can be called upon to: Monitor a disputed border Monitor and observe peace processes in post-conflict areas Provide security across a conflict zone Protect civilians Assist in-country military personnel with training and support Assist ex-combatants in implementing the peace agreements they may have signed Getting involved The United Nations Office of Military Affairs seeks highly qualified military officers from UN Member States for service in our peace missions around the world, either as individual Staff Officers, as Military Observers, or as part of a formed unit from an individual Troop-Contributing Country. All military personnel working under the Blue Helmet are first and foremost members of their own national armies and are then seconded to work with the UN for periods normally of up to one year in the field, or two years in the UN headquarters. Any queries about working for the UN in a military capacity should be addressed within an applicants own country first. By the end of 2012, 3.8% of UN military personnel were female. A top priority for UN