Iranian intervention in the Syrian civil war in the context of "Hezbollah"

The Syrian civil war was an armed conflict that began with the Syrian revolution in March 2011, when popular discontent with the Ba'athist regime ruled by Bashar al-Assad triggered large-scale protests and pro-democracy rallies across Syria, as part of the wider Arab Spring. The Assad regime responded to the protests with lethal force, which led to a series of defections, the emergence of armed opposition groups, and the civilian uprising descending into a civil war. The war lasted almost 14 years and culminated in the fall of the Assad regime in December 2024. Many sources regard this as the end of the civil war.

The Syrian opposition to Bashar al-Assad began an insurgency, forming groups such as the Free Syrian Army. Anti-Assad forces received arms from states such as Qatar and Turkey. Pro-Assad forces received financial and military support from Iran and Russia: Iran launched a military intervention in support of the Syrian government in 2013, and Russia followed in 2015. By this time, rebels had established the Syrian Interim Government after capturing the regional capitals of Raqqa in 2013 and Idlib in 2015.

Since the Iranian Revolution in 1979, the government of the Islamic Republic of Iran has been accused by several countries of training, financing, and providing weapons and safe havens for non-state militant actors, such as Hezbollah in Lebanon, Hamas in Gaza, and other Palestinian groups such as the Islamic Jihad (IJ) and the Popular Front for the Liberation of Palestine (PFLP). These groups are designated terrorist groups by a number of countries and international bodies such as the EU, UN, and NATO, but Iran considers such groups to be "national liberation movements" with a right to self-defense against Israeli military occupation. These proxies are used by Iran across the Middle East and Europe to foment instability, expand the scope of the Islamic Revolution, and carry out terrorist attacks against Western targets in the regions. Its special operations unit, the Quds Force, is known to provide arms, training, and financial support to militias and political movements across the Middle East, including Bahrain, Iraq, Lebanon, Palestine, Syria, and Yemen.

A number of countries (Argentina, Albania, Australia, Bulgaria, Denmark, France, India, Kenya, Sweden, Thailand, United States) have accused the Iranian government and the Islamic Revolutionary Guards Corps of plotting assassinations or bombings in their countries and others against perceived enemies of Iran. In response, economic sanctions against the Iranian regime have been imposed by many countries and the United Nations. The first sanctions were imposed by the United States in November 1979, after a group of radical students seized the U.S. embassy in Tehran and took hostages. The sanctions were expanded in 1995 to include business dealings with the Iranian government. However, these sanctions have not significantly impacted the country's relationships with its proxies. The United States Department of State estimated that Iran spent more than $16 billion in support of the Assad regime and its proxies between 2012 and 2020, a period in which Iran funneled more than $700 million to Hezbollah.