On 6 August 1938 the Spanish Republican Army Chief of Staff reorganized the Northern Army "(Ejército del Norte)" and the 10th Santander Brigade was renamed as 175th Mixed Brigade. It was placed under the 54th Division of the XV Army Corps of the Northern Army. However, following the Battle of Santander in the summer of 1937 the isolated Republican territory in Northern Spain fell to the rebel faction and this unit ended up being disbanded in mid-September 1937.