It appears to be an armament depot. The revetter bunker complex on the left has stores visible. The revetments down the runway are empty. A further revetment comlex to the east is under construction.
The date of imagery is given as 2004 which suggests it is an active site. There is a photo of the main gate that is accessible from Google Earth.
In 1945 it was a USAAF 435th Troop Transport Group. It remained in USAF hands thereafter.