A similar Nationalist offensive, the Battle of Guadalajara, was a more significant defeat for Franco and his armies. This was the only publicised Republican victory of the war. Franco used Italian troops and blitzkrieg tactics; while many strategists blamed Franco for the rightists' defeat, the Germans believed it was the former at fault for the Nationalists' 5,000 casualties and loss of valuable equipment. The German strategists successfully argued that the Nationalists needed to concentrate on vulnerable areas first.