American field howitzer from the Second World War period. It was produced in series, under the designation M1, from October 1942 to June 1945, with a total of 4035 guns of this type being produced.

The development of the M198 155mm towed howitzer began in 1968 when a lightweight replacement was sought for the WWII era M114 155mm howitzer. A testbed prototype was developed and constructed at ...