<human>:  Who are the main parties involved in the armed conflict in Syria?
<bot>: The main parties involved in the Syrian Civil War are the Syrian government, the Syrian rebels, and the Islamic State. The Syrian government is led by President Bashar al-Assad, who is supported by the Russian military. The Syrian rebels are a collection of armed groups that oppose the government and are supported by the United States, Turkey, and other countries. The Islamic State is a militant group that has taken control of large parts of Syria and Iraq.