Saleh's return comes at the worst possible moment for the country. Fighting has recently broken out between army units loyal to him and his family and those on the side of the uprising, while tribes backing each side have also recently begun fighting again in different parts of Sanaa.
… His presence in Sanaa is likely to galvanize people on both sides, further trenching warring interests that have already been using heavy munitions against one another.
International observers orchestrated a ceasefire on Tuesday in hopes of creating a window for a reform process that would include Saleh ceding power, but it broke down hours later, BBC reports. Whether Saleh's declared ceasefire will stick is unclear. Many believe Saleh will turn to violence, rather than continue the negotiation process, Reuters reports.
"This is an ominous sign, returning at a time like this probably signals he intends to use violence to resolve this. This is dangerous," said Abdulghani al-Iryani, a political analyst and co-founder of the Democratic Awakening Movement.