Turkish defence firm Baykar has delivered 20 armed drones to the United Arab Emirates this month and could sell more, two Turkish sources said, as a diplomatic detente between the former regional rivals expands into military contracts. International demand for Baykar’s drones soared after their impact on conflicts in Syria, Ukraine and Libya, where their laser-guided armour-piercing bombs helped repel an offensive by UAE-supported forces two years ago. That civil war in Libya was one of several theatres where the two countries played out a bitter, decade-long battle for influence in the Middle…