In a last attempt to resolve the crisis, Zhou Enlai himself flew to Wuhan on July 20; for his own safety, Zhou landed at a nearby airstrip controlled by the PLA Air Force, a branch of the military loyal to Lin Biao (and therefore, the Cultural Revolution). Mao himself also made abode at the Wuhan East Lake Guest House. Chen seemed to be swayed by Mao's own presence in Wuhan and acquiesced to writing a self-criticism. Wang Li then gathered some 200 divisional officers at a impromptu conference and reprimanded them for failure to grasp the essence of the Cultural Revolution. The Wang Li speech drew particular ire with the military brass due to its condescending tone.