Hezbollah Secretary General Hassan Nasrallah’s suggestion that Lebanon should facilitate the migration of Syrian refugees by sea to Europe has sparked a heated debate in the country given the dangerous implications it may have. Millions of Syrians have fled abroad since their country's war broke out in 2011 following the government's repression of peaceful pro-democracy protests. Many have crossed the border into Lebanon, which the United Nations says hosts the largest number of refugees per capita in the world.