On Friday, 3 May 2019, the Chief of the HNDGS, General Christos Christodoulou, attended the ceremony for the transfer of duties of the Supreme Allied Commander Europe (SACEUR) at Mons in Belgium, from General Curtis M. Scaparrotti (US Army) to General Tod D. Wolters (US Air Force).

 In parallel, the Chief of the HNDGS met with the head of the Permanent Representation to NATO of Greece, Ambassador Spyridon Lambridis, while he also visited the Hellenic Military Delegations at the NATO Military Committee, as well as the Supreme Headquarters Allied Powers Europe (SHAPE).