In its last report on Yemen, the U.N. warned against the growing risk of civil war in the country, adding that unless a political solution was found quickly, Yemen would sink further into the quick sand of a tribal conflict.

Unlike Tunisia, Egypt and Libya, Yemen has yet to claim victory against the regime that it set out to oust back in February. Despite the demonstrations and sit-ins, international pressure and tribal threats, president Saleh is proving to be much tougher to crack than his fellow autocrats.

Still in the Kingdom of Saudi Arabia where Saleh is recovering from an attack on his presidential compound, the shrewd statesman that he is has managed so far to maneuver his way through the maze of political alliances, managing to keep enough support to ensure his stay at the presidency.

However, months of limbo and aggravated economic factors have increased people’s frustrations towards their political class, leaving many analysts to believe that Yemen is on the brink.

"Clearly the country is teetering on the brink of civil war. Frustrations are growing and people don't see the light at the end of the tunnel because nobody is willing to take a step forward,” said Hanny Megally the U.N team leader.

Furthermore the tribal factor is causing the U.N. concerns. Since the powerful and well armed Hasheed tribe has vowed to stand against the regime and Saleh coterie, the crack of a match could engulf the nation into an armed conflict.

For months, the tribes have been preparing to confront the government forces, building trenches in Hasaba, a district of the capital, Sana’a and stocking up weapons in the Arhab region. Alliances have been set and great many Sheikhs are now standing against the regime, willing to use force if Saleh does not bow to his people’s demands.