WASHINGTON, United States (AFP) — United States Secretary of Defense Jim Mattis and his Qatari counterpart Khalid al-Attiyah signed a letter of agreement Wednesday for a $12-billion sale of US-manufactured F-15 fighters, the Pentagon said. The sale comes amid a simmering crisis in the Gulf after Qatar’s neighbors accused it of supporting terrorism and cut diplomatic ties. US President Donald Trump has signalled his support for the Saudi-led move but other US officials have been […]