In the North-East corner just over the border with the Netherlands is one of the two Belgium F-16 airbases situated. Kleine Brogel AB hosts the 10th Wing, that is divided into three squadrons. First you have the 31e Escadrille "Tiger" and the 349e Escadrille "Goedendag", both operational F-16AM & BM squadrons. The last squadron and also the host of this years Operational Integration Exercise is the Operational Conversion Unit (OCU) "Semper Vulture". The task of the OCU is to convert young pilots from Alpha Jet to F-16 and get them to a basic operational status, and teach how to fly an aircraft and which tactics best exploit the performance of aircraft and its weapons. On 17 July the Kleine Brogel Air Base celebrated the 20th Anniversary of the Operational Conversion Unit (OCU) with a special book and a large scale "spotters day". In combination with the 20th Anniversary was also in line with the OCU training opportunities a OIE or Operational Integration Exercise organised with more than 80 military aircraft from 10 different countries. Two COMAO's (Combined Air Operation) where flown over the North of Germany, divided into a Low and High COMAO. The purpose of the exercise is to improve and train tactical co-operation and skills in a multinational environment. Together with the Combined Air Operations Centre in Uedem, Germany a complex scenario was set up, including all the elements of a modern air operation. These included attack on ground targets from low and medium altitude level, and air-to-air refuelling from the RAF VC-10 normally based at Brize Norton. After departure, they flew to a reserved air space in the north of Germany and the south of Belgium. Almost organised every year now in different surroundings and objectives, provided the Belgium AirForce and 10th Wing also this year a spotters day where all enthusiasts could whiteness all the movements and work around and on the participating aircrafts. As usual was the day perfectly arranged, and all personal from the Belgium AirForce and visiting airforces more than helpful to assist and inform everyone wherever they could. All the organising staff from 10 Tactical Wing at Kleine Brogel should be awarded and thanked for organising such a fine and one of a kind spectacle, the efforts were greatly appreciated by many enthusiasts.