JERUSALEM—To understand the latest escalation of violence between Israel and Gaza, we should backtrack to October 23 in the city of Khartoum, Sudan. In the middle of the night, four jets flew in from the East and bombed the Yarmouk weapons factory in the Sudanese capital. Sudan’s government said the high-tech operation—which jammed Sudan’s radar and virtually destroyed the factory—could only have been completed by Israel.
After the attack, hundreds of protestors in Khartoum took to the streets, shouting and waving signs with anti-Israel slogans. In Gaza, the day after the weapons factory exploded, Hamas militants fired 79 rockets at Israel. The day before that, Hamas had launched only three rockets into Israel.

