Original: In June 1991, he co-founded and commanded, alongside Hovsep Hovsepyan, the "Liberation army" military organization whose goal was to preserve the self-determination and defense of the local Armenian population of Nagorno-Karabakh.
Simplified: In June, 1991, with Hovsep Hovsepyan co-founded and commanded the "Liberation army" military organization whose goal was to preserve the self-determination and defense of the local Armenian population of Nagorno-Karabakh.