Sanaa, Yemen - A new sense of national identity is spreading across Yemen's divided society as rival tribesmen and political foes unite to oust President Ali Abdullah Saleh, who on Friday said he would step aside as long as he could deliver power to "safe hands."

Tens of thousands of anti-government demonstrators took to the streets Friday to demand Saleh's ouster. Once-privileged members of Saleh's Hashid tribe marched side by side with southerners persecuted by his regime. They chanted, "One demand, one Yemen." The national anthem blared over loudspeakers.

"We are of one heart because we all have the same demand: Ali Abdullah Saleh has to leave," said Abdulrahman Saeed, 18, a student.

But without question, deep divisions remain. On the other side of town, tens of thousands of Saleh supporters clutched portraits of their president and banners that read "No to chaos. Yes to security and stability." A faction of the armed forces that still supports Saleh protected them.

Even as Saleh offered to step down, he remained defiant at an open-air rally, accusing his opponents of trying to stage coups while he sought to keep the peace. Saleh has been negotiating his exit with rivals, but has fiercely resisted all suggestions of an immediate resignation.

A week ago, snipers loyal to the government killed 52 protesters near Sanaa University. The bloodshed was a significant turning point in the uprising, prompting a string of high-level defections from Saleh's fold, including top generals, diplomats and tribal leaders, including those belonging to Yemen's largest tribe, the Baqeel, and Saleh's own Hashid tribe.

At no other point in Saleh's 32-year reign have so many from his diverse array of opponents coalesced to try to force him from power.