ISTANBUL — Turkey and Qatar deepened their defense-industrial cooperation during the Doha International Maritime Defense Exhibition and Conference (DIMDEX) 2026, with a series of agreements signed between Qatari entity Barzan Holdings and leading Turkish defense companies. The most prominent development involved Turkish shipbuilding consortium TAIS and Barzan Holdings, which signed a $1 billion agreement covering the procurement of two Istif-class frigates. The agreement was signed by Barzan