The second assassination attempt was in summer 1944. No longer caring about Himmler, the conspiracy planned to kill Hitler with a bomb when he was attending another strategy meeting in a wooden barracks. When the assassin's bomb failed to kill the "Führer", Boeselager was informed in time to turn his unexplained cavalry retreat around and return to the front before suspicions could be aroused. Because of Boeselager's fortunate timing, his involvement in the operation went undetected, and he was not executed, unlike the majority of the conspirators. Philipp's brother Georg was also a participant in the plot, and likewise remained undetected, but was later killed in action on the Eastern Front.