 Complete the following phrase:  Until the second week of February 1944, the two armies of the Leningrad Front had deployed only vanguard elements while attempting to force entry into Estonia. Army General Leonid A. Govorov of Leningrad Front ordered the 2nd Shock Army to break through the German defence line north and south of Narva town, move the front fifty kilometres westwards and continue towards the town of Rakvere. The artillery of the 2nd Shock army opened fire on all German positions on 11 February, continuing the 