Commodore (OF-6) Periklis PIYIS Hellenic Navy, NMIOTC Commandant.
Commodore Periklis Piyis graduated from the Hellenic Navy Academy in 1991 as a warfare officer.
He has served on board surface units of the Hellenic Fleet and had the honor to command two ships during his career; a Fast Patrol Guided Missiles boat, HS TROUPAKIS, and a Landing Ship Tank, HS SAMOS.
Ashore, he was assigned for a total of 10 years at the Hellenic Navy General Staff (HNGS), as Head of the Weapons and Ammunitions Department, Head of the Guided Missiles and Electronic Warfare Systems Department, and finally Director of C3, Weapons and Electronic Warfare Systems Directorate. In addition, he served as Director of Surface Programmes at the Armaments Directorate.
He has multifaceted NATO experience. He served from July 1999 – Sep 2001 at the NATO Joint Command South Cent (JCSC) in Larissa, Greece, as a J9 SO. He was assigned, from May 2010 – July 2013, as a Fire Control (FC) Systems Engineer, at the NATO Sea Sparrow Office in Den Helder, The Netherlands. From May 2020 – June 2021, he was the National Representative to the executive meetings of the NATO Sea Sparrow Programme and a National Representative to the NATO Naval Armaments Directors meeting, where he presented Hellenic Navy’s plans and programmes in support of the NNAG decisions. From June 2021-Sep 2022 he served as BH of the Strategic Partnerships Branch at NATO HQ SACT (Norfolk, Virginia) assigned in parallel as the team leader for developing and promoting the Layered Resilience Warfare Development Imperative. From Sep 2022-Aug 2024 he was assigned as BH of the Warfare Development Fusion (WDFB) Branch responsible for the implementation of the NATO Warfighting Capstone Concept (NWCC). From Sep 2024 – January 2025 he was assigned as COS of the NATO Maritime Interdiction Operational Training Centre (NMIOTC).
He has graduated from both the Hellenic Joint Supreme War College and the Hellenic Defence College. He has also attended the MsC in Shipping and Transport programme, at the Rotterdam’s Maritime University.
He speaks English fluently and has a working knowledge of French.
Commodore Piyis is married to Maria Markoni and together they have two sons, Ioannis and Efstathios.
Captain (OF-5) Adem YAYLA TUR (N) DCOM of NMIOTC
Captain Adem YAYLA, TUR (N) was born in İstanbul, Türkiye in 1977, joined Naval High School in 1991 and graduated from Turkish Naval Academy in 1999.
His seagoing career has been spent in Yavuz/Barbaros class frigates and Kılıç class fast attack craft, serving as a weapon electronic officer, anti-air warfare officer, gunnery officer, principal warfare officer and then executive officer. He commanded the fast attack craft TCG MIZRAK.
During assignments ashore, he worked at the Turkish Fleet Headquarters. He served as instructor in Karamürselbey Naval Training Center and Turkish Naval Academy.
He served as naval plan officer at The Qatari-Turkish Combined Joint Task Force Command in Qatar.
He holds a M.Sc. in Electronics and Communication (electromagnetic wave propagation) from Kocaeli University, Türkiye (2014-2016). He is a Ph.D. student at the same university.
