For much of the past decade, Assad’s regime, bolstered by unwavering support from Iran and Russia, brutally suppressed dissent. What began as an uprising in 2011 evolved into a devastating civil war that eventually settled into an uneasy stalemate.

Israeli Prime Minister Benjamin Netanyahu has had a succession of monumental wins that include the top leaders of Hamas and Hezbollah being eliminated.

Iran is still grappling with the fallout from the fall of the Assad regime. It invested heavily in Assad’s rule in Damascus and likely expected that it would continue for many years. However, Assad fell from power on December 8.

For Iranians, the collapse of the Assad regime is significant because Syria has been a cornerstone of Tehran's regional strategy.

The Syrian regime’s collapse came more quickly than the rebels had dreamed — the circumstances were both serendipitous and part of a larger global realignment.

The ascendance of Sunni Islamist rebels in Syria should be viewed with great caution by Western powers, but the Assad regime’s collapse disables a critical node in Iran’s regional proxy network, a counterterrorism expert explains.

Israel is celebrating the fall of Assad because it breaks the noose that Iran had been patiently tightening around Israel’s borders in Gaza, Lebanon and Syria. Tehran’s pincer is now broken and rendered useless. From the point of view of Israel’s wider conflict with the Islamic Republic, the collapse of Assad’s regime is a strategic victory.

Iran has opened a direct line of communication with rebels in Syria's new leadership since its ally Bashar al-Assad was ousted, a senior Iranian official told Reuters on Monday, in an attempt to "prevent a hostile trajectory" between the countries.

Tehran’s increasingly vulnerable position in the region has energized opposition activists and spurred hardliners to endorse the pursuit of nuclear weapons.

For Iran’s theocratic government, it keeps getting worse. Its decadeslong strategy of building an “Axis of Resistance” supporting militant groups and proxies around the region is falling apart.

The sudden collapse of President Bashar Assad’s government in Syria will be felt far beyond the borders of that country alone. The fall of Assad is another blow to his Lebanese ally,

One of Israel's goals in its campaign in the Gaza Strip has been to also weaken Iran. The fall of the Syrian dictator suggests the strategy is paying off. This could open up new options for the U.S.