 During World War II, the surrounding neighbourhood was devastated, but the building itself was left largely intact (and inhabited by the homeless citizens of a bomb-ravaged Frankfurt).In March 1945, Allied troops occupied the area and the IG Farben Building became the American headquarters of General Dwight D. Eisenhower.Eisenhower's office was where he received many important guests; including General de Gaulle, Field Marshal Montgomery and Marshal Zhukov.