World IDEF 2025: Istanbul to Host International Defense Industry Fair by Ibrahim Khalil - World Editor February 21, 2026 by Ibrahim Khalil - World Editor February 21, 2026 IDEF 2027: Istanbul to Host Major International Defence Industry Fair Istanbul, Türkiye, is set to host the 18th International Defence Industry Fair (IDEF) from May 3 to 9, 2027. The … 0 FacebookTwitterPinterestEmail