Pakistan's efforts to maintain close ties with President Donald Trump are being put to a test after protests over the killing of Iran's Supreme Leader Ayatollah Ali Khamenei in U.S. and Israeli strikes. The protests have exacerbated Pakistan's ongoing conflict with Afghanistan, the other nation on its western border along with Iran. Pakistan's relationship with the U.K. has strengthened since Trump returned to the White House last year, providing a useful counterbalance to its troubled ties with India. Senior Shi'ite clerics in Pakistan have announced days of mourning and warned of more protests, which could lead to instability in its main cities. The death of Khamenei has united the Shi'ites with a new spirit of revolution and independence from the U., according to senior Shi'ITE cleric Sajid Ali Naqvi.