Local Training Area 6910 (Dagger Complex), Germany
Local Training Area 6910 (Dagger Complex) is located on the boundaries of Darmstadt and Griesheim. The headquarters of the 66th Military Intelligence Group is located in facilities next to the training area. The 2nd Radio Squadron Mobile [USAF] built the Dagger Complex, their former Operations Site. The 2nd RSM was stationed at Ernst Ludwig Casern from 1947 to about 1953, when it moved to Cambrai Fritsch Kaserne. It stayed there until 1971, when it was deactivated.

In December 1999 the US Army Intelligence and Security Command (INSCOM) and the US Army Europe (USAEUR) returned the 66th Military Intelligence Group's Augsburg base to Germany. The 66th MI and its 527 MI Battalion had completed their move to new headquarters in the Darmstadt suburb of Griesheim. The move started in 1995. The $18 million bill for renovation of the Griesheim complex updated some buildings which dated from Germany's Nazi era. The move was difficult, particularly because the group's 50 functional intelligence areas had to be seamlessly phased in at Griesheim while being phased out at Augsburg. INSCOM called it the most complex relocation ever.