SANA'A, Yemen (TIME) - What began as a simmer in the Arab World's poorest and most capricious state has suddenly started to come to a boil. In Yemen's mountain capital of Sana'a, the threat of civil war hangs like a bad taste in the dusty air. Motley marches of pro- and anti-government protesters block the streets, and tens of thousands of armed tribesmen wait in murky rooms around the country for orders from their chiefs. The mood in the capital is tense.
Yemen's opposition, a loose coalition of parties from Nasserites to socialists to Islamic clerics, now has the ability to rally large numbers. And late Monday night, it quashed a last-ditch attempt by President Ali Abdullah Saleh to form a unity government. Gangs on motorcycles streamed through the streets, draped in red, white and black Yemeni flags, demanding that the President leave. There were fears that pro- and anti-government protesters could face off around the capital; a solitary military helicopter flew low over the capital as the regime very publicly flexed its muscles.
With the situation looking more and more desperate, Saleh offered on Monday to form a unity government with the opposition. The pitch included the formation of a coalition, an end to all demonstrations, the release of prisoners held without trial and the start of corruption investigations. Saleh's plan backfired. After publicly rebuffing the proposal, opposition spokesman Mohammed al-Qubati said, "Saleh has only two options: either to be a former President or a deposed President."