Major General Lebert is the Commander of the NATO Airborne Early Warning & Control Force in Geilenkirchen, Germany.
He leads an international military and civilian staff, representing 17 NATO nations which provide an airborne early warning, command and control and battle management capability in support of NATO commanders. Prior to this assignment, he was Chief of Division II, Controlling and Financial Accounting for the German Air Force.
Following officer training in Fürstenfeldbruck and basic flying training at the Lufthansa Flying School, Major General Lebert served in various operational and staff positions. As a C-160 and C-130 pilot and qualified flying instructor, he was a Squadron Commander in Air Transport Wing 62, 3rd Flying Squadron from 1991 to 1994. Subsequently, he attended the Command and General Staff Officer Course at the Federal Armed Forces Command and Staff College in Hamburg, from which he graduated in 1996.
Immediately following this, he was assigned to the Air Transport Command. As a Branch Chief he was responsible for Plans and Policy, covering strategic concepts, exercise framework and standardization. In 1998, he returned to Air Transport Wing 62 as the Commander, a position which he held until 2000. After this he served as a Staff Officer in numerous positions, including International Plans and Policy, and as the Personal Staff Officer to the Chief of Staff of the German Air Force. In 2003, he returned once again to Air Transport Wing 62, serving as the Commander until 2006, when he became a Branch Head at MOD Air Staff, Bonn; here he was responsible for Air Force Structure and Organization.
In 2009, he took up the position of Branch Head, Joint Policy Application and Lessons Identified/Learned at Joint Force Command Brunssum. His assignment to Joint Force Command also included a posting to Kabul in 2010 to act as the Liaison Officer between Commander Joint Force Command Brunssum and Commander ISAF. The following year, he became the Change Manager for the new Air Force Structure at the Air Force Command in Cologne, a position that he held until 2012.
Until 2014, he was the Deputy Commander and Chief of Staff of the European Air Transport Command in Eindhoven. From 2014 to 2015, he was Assistant Chief of Staff Plans at the German Air Force Headquarters in Berlin. Here he was responsible for Plans and Policy, Capability Management and Financial Accounting.