The isolated area of Vizcaya, a predominantly Basque part of northern Spain, was the most immediate target, in what was called the War in the North. It was largely a Nationalist and Italian offensive, but was supported by a consistently re-equipping Condor Legion. Sperrle remained in Salamanca; Wolfram von Richthofen replaced Holle in January as deputy and in actual command. The Legion's air force initially attacked the towns of Ochandiano and Durango.