The attack comes just weeks after Shi'ite cleric Muqtada al-Sadr extended an olive branch to Sunni Arabs and called on his followers to protect and defend their Sunni brethren in the wake of Al-Qaeda's increasingly bitter attacks that target all Iraqis without distinction.
The February 22, 2006, bombing of the Al-Askari Mosque, which destroyed the shrine's famous golden dome, was a watershed moment in Iraq. It set off a firestorm of sectarian attacks and counterattacks between Sunni and Shi'ite Arabs in the country that continues to this day, pushing the country to the brink of civil war.
As Iraqis brace for more violence in the wake of today's attack, which toppled two minarets at the partially destroyed mosque, the Iraqi government imposed a curfew in the capital until further notice.
PHOTO GALLERY: The Destruction Of The Golden Mosque
The shrine, which houses the tombs of the 10th and 11th Shi'ite imams -- Imam Ali al-Askari and his son, Imam Hasan al-Askari -- is immensely symbolic to Shi'a worldwide. Shi'a believe that the revered 12th Imam, al-Mahdi, went into hiding at the site and will only emerge on the day of judgment.
The site is also immensely symbolic to all Iraqis as a historic artifact, and its destruction signifies a further degradation of Iraqi history and culture.
As Iraqis brace for more violence in the wake of today's attack, which toppled two minarets at the partially destroyed mosque, the Iraqi government imposed a curfew in the capital until further notice. A curfew is likely to be called in Samarra as well; the city has a majority Sunni population and is a base for several insurgent groups, including Al-Qaeda-affiliated Islamic State of Iraq.
Divided Insurgency
Just how Iraqis respond to the bombing will reveal much about the emerging climate in the country. In recent weeks, homegrown Sunni insurgents have taken up arms against the Islamic State, which, due to its composition of foreign fighters, is viewed as an outside force that is doing more harm than good to the homegrown Sunni insurgency.
The Islamic Army in Iraq, one of the most powerful Sunni insurgent groups, has publicly chastised the Islamic State for its attacks on Iraqi civilians. The Islamic Army has also clarified its position on the Shi'a, saying Iraqi Shi'ite civilians should not be targeted; only those Shi'a working to support the so-called Iranian agenda in Iraq -- including the U.S.-supported Iraqi military and police -- should be seen as legitimate targets.
The Al-Askari Mosque following the February 2006 attack that brought down its golden dome (epa)