Latest from the Institute for the Study of War. The M109 saw its combat debut during the Vietnam War. Since then, the howitzer has been actively used in almost all military conflicts involving the US ...

The widely used M109 carries a 155-mm howitzer and is the principal self-propelled artillery support for U.S. Army divisions. It is a large tracked vehicle with a fully traversable turret and ...

The M109A5 Self-Propelled Howitzer provides an affordable increase in fire power, as a new production vehicle or an upgrade to earlier configurations of the M109 howitzer. The howitzers’ M284 ...