They guarded the westernmost end of the Republican territory, an area that saw long periods of inactivity between the major battles.
The battle included a swift and well-coordinated pincer movement from the south and from the north.
Some historians consider that the long lulls of inactivity at the Extremaduran front had left the troops ill-prepared for such a major attack.
At the beginning the battle spelt some success for the loyalist side, but it turned to failure after a few weeks of unfruitful combats.
Finally, the Extremaduran Army was disbanded in March 1939 owing to the end of the war and the surrender of the Spanish Republic.