On 15 March 1940 , SS chief Heinrich Himmler stated Statement : `` All Polish specialists will be exploited in our military-industrial complex Cause_to_amalgamate .

The Russian vanguard consisting Forming_relationships of the Vladimir v. Vizin reiters , Daniel Krafert infantry and Iunkmann dragoons approached Arriving Riga on August 20 and threw Self_motion back the Swedes under count of Pärnu , Heinrich von Thurn into the city .