Following years of poor inter-governmental relations, the two countries began to cooperate more closely – particularly following the United States' use of drone missiles to strike at Pakistan's most-wanted militant Mullah Fazlullah on November 24, 2014, whom they "narrowly missed". The United States later used drone missiles to kill several of Pakistan's most wanted militants who were hiding in a remote region close to the Afghan border in November 2014. The Pakistani Zarb-e-Azb operation against militant in North Waziristan also, in the words of Lt. Gen. Joseph Anderson, "fractured" the Haqqani Network—long accused by the United States of having a safe harbor in Pakistan. The United States then captured and transferred a senior Taliban commander, Latif Mehsud, to Pakistan, which had been seeking his arrest. Following an unprecedented two-week-long visit by Pakistan's most senior military official Gen. Raheel Sharif, Rep. Adam Schiff stated that US-Pakistani relations were on the upswing following several tense years of dysfunction. Pakistan further killed senior Al-Qaeda leader Adnan el Shukrijumah—long wanted by the United States. Warming of relations, and increased security cooperation, between Afghanistan and Pakistan were also positive developments by the United States, which had long tried to mend relations between the two countries.