The Central Military Commission's former vice-chairman was handed over to Chinese prosecutors for allegedly accepting bribes for promotions. Guo is the most senior military official to be investigated for corruption in the ongoing anti-graft campaign. His expulsion comes more than a year after the downfall of former top general Xu Caihou, who was also a vice-chairman of the commission under former president Hu Jintao. Here, we explore Guo's connections with other top dogs in the People's Liberation Army.