Young Egyptians wearing facepaint in the colors of the national flag arrive at the square, as tens of thousands of Egyptians gather to pray and celebrate in downtown Cairo, Feb. 18, 2011.

Egyptians hold a picture of Mohammed Mahrus, a protester killed during the popular revolt which ousted president Hosni Mubarak a week ago, at Tahrir Square on February 18, 2011.

An Egyptian army band plays music in Cairo's Tahrir Square on February 18, 2011 during celebrations marking one week after Egypt's long-time president Hosni Mubarak was forced out of office by an unprecedented wave of protests in the Arab world's most populous country.

Crowds gather in Tahrir Square in Cairo on Feb. 18. Egyptians held a nationwide "Victory March" on Friday to celebrate the overthrow of Hosni Mubarak's 30-year rule one week ago, to protect the revolution and to remind new military rulers of the power of the street. Hundreds of thousands joined the rallies, which are also a memorial to the 365 people who died in the 18-day uprising, with many Egyptians expressing their intention to guard their newly-won prospect of democracy.

Girls shout slogans in Cairo's Tahrir Square on Feb. 18.

Pro-democracy campaigners pray next to an army tank during Friday prayers in Tahrir Square, Cairo on Feb. 18.

A girl stands in front of an army tank during Friday prayers in Tahrir Square on Feb. 18.