[2] Very soon Gil Otero was transferred to the Levantine Army (Ejército de Levante) and was replaced as leader of the unit by Infantry Commander Luis Pedreño Ramírez, who had been living in prematurely retirement in Alcoi owing to the "Azaña Law".

[10] The period of training of the brigade took place in Sax, after which the unit marched across the mountains to Villena, from where it was sent westwards by rail to join the Extremaduran Army (Ejército de Extremadura).

[12] The brigade had been initially scheduled to participate in an offensive planned by Toledo Military Commander Aureliano Álvarez-Coque, but which in the end was not carried out.

In July, with the second phase of the Battle of Mérida pocket in full swing, the brigade saw major combat action when it tried to prevent rebel forces from crossing the Guadiana River.

[2] There are reports that under the command of Militia Major Juan Guijarro Iniesta a new 109th Mixed Brigade was later formed and made part of the 37th Division, but it is not known whether it ever became functional.

There are no data regarding this rebuilt brigade and it was not among the units that participated in the final, desperate offensive of the Spanish Republican Army in Extremadura in January 1939.