The Paraguayan Army made extensive use of the Stokes mortar during the Chaco War, especially as a siege weapon in the Battle of Boquerón in September 1932. Stokes mortars were widely used by the Republican Army during the Spanish Civil War, sold mostly by Poland.
In the context of the Chaco War and the Spanish Civil War, the Stokes mortar played a significant role as a siege weapon, with the Paraguayan Army employing it effectively during the Battle of Boquerón in September 1932. The Republican Army also utilized similar artillery, primarily sourced from Poland.