M109 Howitzer emerged in southern Yemen

M109 Howitzer emerged as the United Arab Emirates with the resistance in southern Abyan province of Yemen

The M109 is an American 155mm self-propelled howitzer, first introduced in the early 1960s. It has been upgraded a number of times, most recently to the M109A7. The M109 family is the most common Western indirect-fire support weapon of maneuver brigades of armored and mechanized infantry divisions.