The orders from Stalin on 1 May to the three fronts called for the offensive to commence on 7 May. On 4 May, Marshal Konev provided detailed orders to his army commanders for three thrusts by the 1st Ukrainian Front. A main thrust would occur on the right (western) wing with three combined-arms armies, two tank armies (3rd and 4th Guards Tank Armies) and five artillery divisions, following the valleys of the Elbe and Vltava Rivers. A secondary thrust by the 28th and 52nd Armies was to advance on an axis from Zittau to Prague, and a final thrust by the Polish 2nd Army was to cut off the southeastern approaches to Dresden. Dresden itself was to be taken by the 5th Guards Army as part of the main thrust.