Senior Leadership

Commandant's CV

Commodore Stelios Kostalas GRC(N)
Commandant of NMIOTC

Born in September 1965, Commodore Stelios Kostalas joined the Hellenic Navy in 1983 and graduated from the Hellenic Naval Academy in 1987.

His fleet operational service includes assignments as an Officer on-board Destroyers, Patrol Boats and Amphibious Vessels.

His shore assignments include service as a staff officer to the Operations Directorate of the Hellenic Fleet and the Hellenic Navy General Staff. Staff officer in the Joint Special Operations Command in the Hellenic National Defense General Staff. He has also served for 3 years in NATO at Military Partnerships Directorate (as MPD SENF Director) in ACT Norfolk USA. On June 18th 2018, he assumed the Command of the NATO Maritime Interdiction Operational Training Centre (NMIOTC).

In 1990 he graduated from BUD’s / US NAVY SEALS’s training course and the US EOD training course. Subsequently, he served in the following HN-SOCOM positions: Platoon Leader, Training Officer (in HN BUD’s Training), Training Director and finally Commandant of HN-SOCOM.

He has also served for 3 years as Aide de Camp to the President of the Hellenic Republic.

Commodore Stelios Kostalas has graduated from the Hellenic Supreme Joint War College. In addition, he has a Bachelor of Science in Business Administration from University of the Aegean, a Master Degree in Statistics from Athens University of Economics & Business and a Master in Public Administration (MC/MPA) from Harvard University.

He bears the Gold Cross Phoenix battalion Knight Golden Cross of the Order of Honor Medal of Merit B’ class Navy Force Meritorious Command Medal B’ class, Staff Officer Service Commendation Medal B’ class, Participation in Peace Keeping Operations Commendation Medal, Successful Command – C Class.


Captain Ertürk Avci TUR (Navy)

– Captain (OF-5) TUR (N) Ertürk AVCI; was born in December 1973, attended the Turkish Naval High School in 1987, joined the Turkish Navy in 1991, and graduated from the Turkish Naval Academy in 1995.
– As a surface warfare officer, during his maritime missions from 1995 to 2012, Captain AVCI assumed a variety of duties, onboard several types of auxiliary and warships; including Bridge Watch Officer, Electronics Officer, Navigation and Operations Officer, and Executive Officer (XO). During these posts, he also participated NATO Active Endeavour, UNIFIL, and NATO Exercises. He was appointed as Commanding Officer (CO) of an amphibious ship (LST) TCG KARAMÜRSELBEY (NL-124) in 2012.
– Between the years of 1995-2017, he was also appointed as; the Head of Operations at VLF Station, the Company Commander of Training Battalion, N3 of Amhibious Task Group and Amhibious Squadrons, Head Instructor & Chief of E&T at Sarucapaşa Naval Surface Training Center. During these assignments, he was also posted to NRF HQ, and NATO Amphibious Operations Working Group (AWG) meetings.
– On August 14th, 2017, he was appointed and assumed the Deputy Commandant (DCOM) of the NATO Maritime Interdiction Operational Training Centre (NMIOTC), and as the Senior National Representative (SNR).
– He holds a PG Master Degree in Public Relations (PR), 11 ribbon badges, attended Command and Staff Education Course at the Turkish Naval War College in 2012.


Captain Charalampos Thymis H.N. 

–   Captain Charalampos Thymis H.N. was born in Loutraki, Greece on June 23rd 1966. He graduated the Naval Academy with the rank of Ensign in 1988. In addition to staff courses, he attended the Hellenic Supreme Joined War College and the National Defense College.
–    During his career he has been appointed as PWO and Operations Officer, Executive Officer and Commanding Officer.
–    He also served as Head of Joint Ops Department at HNDGS (2013-2015) and as Director of Ops Directorate of HNGS (2015-2016).
–    He was appointed at UNIFIL MAROPS HQ as a staff officer from 2006-2007 and at Embassy of Greece in Spain as Defense Attaché from 2016 till 2018.
–    He speaks English and Spanish and he holds “Diploma in Negotiations” from Athens University of Economics & Business.


Exercise NIRIIS 2019
Nov 24 @ 8:30 am – Dec 2 @ 2:30 pm
GRC Army Special Operations Forces Tailored Training
Nov 25 @ 8:30 am – Nov 29 @ 2:30 pm
SWE 1st Marine Regiment Boarding & Recovery Team Tailored Training
Nov 26 @ 8:30 am – Dec 3 @ 2:30 pm
GRC Armed Forces Tailored Training
Dec 9 @ 8:30 am – Dec 13 @ 2:30 pm
POL Special Operations Forces Tailored Training
Dec 9 @ 8:30 am – Dec 20 @ 2:30 pm
Course 27000 – Maritime Sniper Course
Dec 15 @ 12:30 pm – Dec 20 @ 2:30 pm
Pilot Course 26000 – Tactical Emergency Care for First Responders in Maritime Operations
Feb 17 @ 8:30 am – Feb 21 @ 2:30 pm
Course 7000 – MIO in support of Counter Piracy
Feb 24 @ 8:30 am – Feb 28 @ 2:30 pm