In the aftermath of the 2006 Israel-Lebanon war, the UN inserted a peacekeeping force of 11,000 troops from 31 nations. According to the UN resolution authorizing the mission, its purpose was to block the flow of weapons to Hezbollah and keep Hezbollah from operating south of the Litani River, near Israel’s northern border.

We’ve known for some time that rockets have continued to flow into Lebanon from Syria. Hezbollah may now have more than 50,000 of them, far more than it had before the 2006 war. And as Stephen Cohen notes in today’s Wall Street Journal (subscription only), the Israeli military has recently revealed intelligence—detailed maps and aerial photographs—showing that these arms are now being stored in areas adjacent to Israel and supposedly being policed by the UN force.