Pakistan has launched a major offensive in North Waziristan, near the border with Afghanistan, mobilizing tens of thousands of soldiers. On Sunday, the military bombarded the area with air strikes, saying it killed more than 100 militants. The accused mastermind of last week’s deadly attack on the Karachi airport was reportedly among the dead. The United States has long called for Pakistan to launch a major assault on North Waziristan, which has been a frequent target of U.S. drone strikes. The United States resumed strikes last week after a six-month pause, killing 14 people in a span of 12 hours.