Nato allies Italy and Greece are set to commence Nato air patrols over Montenegro on 5 June.
The fighter jets of both Italy and Greece will continue to be based in their home countries and will cover Montenegro airspace as required.
Joining Nato last June, Montenegro does not have its own fighter aircraft and has sought help from the Allies to protect its airspace.
The country contributes to Nato’s shared security by offering troops to the North Atlantic Alliance’s training mission in Afghanistan, in addition to financial support to the Afghan security forces.
Nato air policing missions are designed to secure the airspace of Allies that do not have their own air force.
The air policing jets are deployed when military or civilian aircraft are in distress or they do not follow international flight regulations and approach the airspace of Nato Allies.
Nato air policing is a long-running, routine mission designed to protect the integrity of Nato airspace.
Under regulations, Allied air forces need to have at least two fighter jets that would be ready for continuous deployment all across Europe.
Allies that do not have their own air force can look for multinational solutions to secure their airspace.
Spain, Portugal and France are currently part of the Baltic Air Policing over Lithuania, Latvia and Estonia.
In addition, Italian jets are used to help protect Slovenian airspace and the UK Royal Air Force (RAF) supports air patrols over Romania.