Pakistan told the United Nations on Monday it would take all measures required to protect its citizens from militant attacks emanating from Afghanistan as tensions between the neighboring countries intensify, with Islamabad accusing Kabul of harboring armed groups and the Afghan Taliban denying the allegation. Pakistan’s UN ambassador, Asim Iftikhar Ahmad, laid out Islamabad’s position during a debate at the UN Security Council on the situation in Afghanistan, warning that cross-border militancy posed a serious threat to regional security. The remarks came after clashes between Pakistani and Afghan forces erupted last month when Afghan forces attacked Pakistani military positions along...