Israel has promised to retaliate for Iran’s massive missile attack last week. How it does so involves great risk, and could have broad repercussions for the archenemies, the Middle East and the world.

Analysts and policy officials say concerns about nuclear tensions are growing in the Middle East after Iran launched a missile attack on Israel Tuesday. Here’s what to know about Iran’s capabilities.

Iran's foreign minister warned Israel against launching an attack, saying on Tuesday any strike on Iranian infrastructure would be met with a stronger retaliation. Iran attacked Israel last week with a salvo of missiles.