Egypt's 'Friday of Departure'

Wounded anti-government protesters march during a demonstration at the Tahrir Square. Tens of thousands packed central Cairo on Friday, waving flags and singing the national anthem, emboldened in their campaign to oust President Hosni Mubarak after they repelled pro-regime attackers in two days of bloody street fights. (AP Photo)

An anti-government protester holds a poster. (AP Photo)

Stones, ready to be thrown, are gathered in piles as anti-government protesters block the street to form a checkpoint at the Tahrir Square. (AP Photo)

Egyptians demonstrate at the Tahrir Square, also known as Liberation Square on Friday. (AP Photo)

One of the anti-government protesters holds a poster slamming Egyptian President Hosni Mubarak. The military guarded thousands of protesters pouring into Cairo's main square on Friday in an attempt to drive out Mubarak after 11 days of pro-democracy demonstrations. (AP Photo)

Despite a wider government crackdown, tens of thousands of Egyptians streamed toward the central Tahrir Square on Friday, carrying baskets of bread, food and water for those camped out there and apparently anticipating a long siege to press for the ouster of President Hosni Mubarak. (AP Photo)

The uprising, is one of Egypt's most decisive moments since the 1952 revolution. (AP Photo)

Anti-government protester shouts slogans during a demonstration at the Tahrir Square. (AP Photo)

After a night of scattered clashes and bursts of gunfire, an uneasy calm prevailed on Friday as anti-government protesters mustered for what they have called a "Friday of departure" in hopes of maintaining the momentum behind demands that Mr. Mubarak step down after three decades in power. (AP Photo)