Poland is set to receive four Airbus A330 MRTT tanker and transport aircraft by 2030 under a joint procurement programme with Spain worth an estimated €5.4 billion.The Spanish government approved the framework agreement at a cabinet meeting on Tuesday, clearing the way for the two countries to jointly acquire at least seven aircraft, according to Polish Deputy Prime Minister and Defence Minister Władysław Kosiniak-Kamysz.“Most importantly, by 2030 Poland will receive four aircraft,” Kosiniak-Kamysz said on X, adding that the next step would be the signing of the final contract.The purchase will use financing from the European Union’s Security Action for Europe (SAFE) programme, with Poland’s participation covered by an annex to the Spanish framework agreement.‘Essential equipment for our Air Force’Kosiniak-Kamysz said acquiring the aircraft would provide an important new capability for Poland as its Air Force brings F-35 fighter jets into service.“This is essential equipment for our Air Force, which is in the process of bringing F-35 aircraft into service,” he said. “It is also an important decision for NATO’s security and for Poland’s security.”The framework agreement will remain in force for seven years once formally concluded.What kind of aircraft is it?The Airbus A330 MRTT is a military tanker and transport aircraft based on the civilian A330 airliner. Its primary role is refuelling other aircraft in flight, allowing fighter jets to fly greater distances and remain airborne for longer.It can also carry troops, equipment and cargo over long distances and can be configured for medical evacuation missions.Several NATO countries already operate the A330 MRTT, either through their national air forces or as part of NATO’s multinational tanker fleet.