Published footage of the crew of the American 155-mm self-propelled howitzer M109 of the army of Ukraine. The video shows the process of preparing a howitzer for a shot by the crew of the Ukrainian army. Earlier, Ukraine received M-109 howitzers of different versions from Latvia, Norway, Great Britain and Italy. Howitzers began to be produced in 1962 and were delivered to many countries of the world. Over the years, the howitzer has been upgraded many times, the latest version being the M109A7. The howitzer uses separate cartridge loading charges. The rate of fire of the howitzer is up to 4 rounds per minute.