M102 type the caliber that 105 millimeter howitzer is production of armory of American cliff island the drawing style howitzer of 105 millimeter. Began to develop 1961, in Vietnam warlike field is used first at the beginning of 1966, 90 time still equip the army such as division of American airborne division, the motor-driven in sky. Division of the motor-driven in basically be being used at be infantry division, airborne division and sky offers immediate fire to assist, still export the nation such as France, Brazil, Korea, Saudi Arabia. M109 type howitzer of 155 millimeter proper motion is the first kind of self-propelled gun that make barbette and bodywork with aluminium alloy and can carry out 360 ° annulus to shoot. Finalized the design 1963 and equipment unit, division of armour of the main military uniform that it is the United States and mechanization infantry division offer proper motion firepower to assist. Outside removing ground force of equipment United States, still export more than 30 country and area. M102 type the caliber that 105 millimeter howitzer is production of armory of American cliff island the drawing style howitzer of 105 millimeter. Began to develop 1961, in Vietnam warlike field is used first at the beginning of 1966, 90 time still equip the army such as division of American airborne division, the motor-driven in sky. Division of the motor-driven in basically be being used at be infantry division, airborne division and sky offers immediate fire to assist, still export the nation such as France, Brazil, Korea, Saudi Arabia.