He wrote: "I want to express my sincere gratitude to the Cabinet for having accepted my repeated application for voluntary resignation. I need some time to ponder on many of the events that have happened over the year in the post of the deputy minister of defense of Ukraine.
"I have fulfilled my obligation before the society and volunteer community by doing reforms in the Ministry of Defense since January 2015. I'll take a respite for analyzing where my knowledge and experience may be used for the benefit of Ukraine.
"I want to sincerely thank all my colleagues, volunteers, members of the government, thousands of supporters of reforms in the Ministry of Defense and our heroes who are now on guard in ATO area, defending our freedom and independence!"