Rivers of protesters arrived in Tahrir, or Liberation, Square at checkpoints guarded by protesters and the army, which promised Monday night that it would not fire on protesters.
The announcement was a sign that army support for Mubarak may be unraveling as momentum builds for an extraordinary eruption of discontent and demands for democracy in the United States' most important Arab ally.
"We are not going anywhere until Mubarak leaves," said Mohammed Abdullah, a 27-year-old aviation engineer.
The loosely organized and disparate movement to drive him out is fueled by deep frustration with an autocratic regime blamed for ignoring the needs of the poor and allowing corruption and official abuse to run rampant. After years of tight state control, protesters emboldened by the overthrow of Tunisia's president last month took to the streets on Jan. 25 and mounted a relentless and once unimaginable series of protests across this nation of 80 million people — the region's most populous country and the center of Arabic-language film-making, music and literature. sumber