Hizballah has tentacles in numerous countries, and is especially powerful in Latin America. Originally financed from Iran, Hizballah now is also funded by drug operations in both hemispheres. It also receives contributions from Islamic charities around the world.
The degree of autonomy exercised by Hizballah is unclear, but its connection to Iran is close enough that it’s been called “the Foreign Legion of the Iranian Revolutionary Guards.” It’s fair to say that one of the major factors that deters the US and Israel from military action against the Iranian nuclear program is the threat that Hizballah would both strike Israel with tens of thousands of rockets as well as unleash a wave of terror against American interests at home and abroad."