 Complete the following phrase:  The 28th Division remained on the Aragon front for much of the war. In June 1937 it took part in the unsuccessful Huesca Offensive, and at the end of August one of its units - the 127th MB - took part in the Zaragoza Offensive. In February 1938 it took part in the Battle of Alfambra. During the subsequent offensive on the Aragon front, the unit undertook several withdrawals in the face of enemy pressure. It took part in the Levante Offensive integrated in the 13th Army Corps, being later transferred to the Estremadura front, where it participated in the Battle of Merida pocket. After Gregorio Jover was promoted to command of the 10th Army Corps, on August 11 Juan Mayordomo Moreno took command of the division. In January 1939, the unit participated in the 