 Complete the following phrase:  Its headquarters was formed with the 54th Army of the Volkhov Front in mid-November 1943, and with its assigned divisions fought in the LeningradNovgorod Offensive during January and February 1944. The corps then fought in failed attempts to break the Panther Line for the next several months and the Pskov-Ostrov Offensive in July. Its headquarters was transferred to the 67th Army and with a different set of divisions fought in the Riga Offensive in September. During late 1944 and early 1945 it served on garrison duty in southern Estonia and Latvia, then participated in the disarmament and collection of German prisoners of the war surrendered in the 