The Dagger Complex is a base of US intelligence organisations in Darmstadt (Germany), close to Griesheim.
Beginning in mid-to-late 1944, after the Allies landed in Normandy and began to move east into central France, Darmstadt-Griesheim came into the effective range of USAAF Ninth Air Force B-26 Marauder medium bombers and P-47 Thunderbolts.
Zeilsheim is linked by bus to the observation tower in Bockenheim, to Griesheim and to Niederrad, as well as by regional bus lines to Schwalbach am Taunus und Hofheim.