Religious tensions among Lebanon's Maronite Christians, Sunni Muslims, and Shiite Muslims, and others, along with an influx of Palestinian refugees, for decades have underpinned Lebanon's internal conflicts as well as its conflicts with neighboring countries. Hezbollah emerged in Lebanon as a powerful Islamic militant group and since 2005, a member of Hezbollah has held a cabinet position in the Lebanese government. Hezbollah is funded by Iran and has been designated by the United States and Israel as a terrorist organization.