In April 2019 Germany's 1st Armored Division took the role of exercise High Command (HICON) at Hohenfels Training Area, primarily for German 21st Armored Brigade, the Lithuanian Iron Wolf Brigade, and their subordinate units; 5,630 participants from 15 nations took part in this Joint multinational exercise, which rotates the lead among the coalition partners. Germany's 1st Armored Division already had Dutch, British and Polish officers within its ranks. The Army's 2nd Battalion, 34th Armored Regiment, took part in the exercise. Six engineering advisor teams from 1st Security Force Assistance Brigade provided hands-on experience and testing of secure communications between NATO allies and partners.