The shadow war between Israel and Iran has been raging for more than three decades, ever since the Iranian revolution of 1979 ushered in a fundamentalist regime whose sworn enemies have consistently included, first and foremost, Israel and the United States. Israel, especially, has borne the brunt of attacks from Iran's two most powerful proxies--Hamas in the Gaza Strip and Hezbollah in Lebanon. Iran's nuclear ambitions raise the stakes immeasurably. Israel vs. Iran evaluates the threat to Israel's security posed by a nuclear Iran, including competing perceptions of the threat, and analyzes...