The division, which was made up of the mixed brigades 20th, 63rd, 91st and 109th,[1] was assigned to VII Army Corps.

[3] During the following months, it remained in its positions, without intervening in relevant operations.

In July 1938, it took part in the Battle of Merida pocket, during which he suffered considerable damage.

Its 20th and 91st brigades were isolated inside the pocket,[4] suffering heavy losses, although some troops managed to escape the siege.

The division was subjected to a reorganization, with the militia major José Sabín Pérez taking command.