Who anywhere trusts Russia?
The Russians, as a group, have never embraced civilization or civilized behavior. Any agreement with them is regarded by their side as "a pause while they are reloading" rather then any step toward peaceful coexistence.
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Commies and Nazis trust Russians. There are no Nazis in Bundestag, but there are 64 commies out of 631 representatives. Also Chancellor Gerhard Schröder fought for closing German nuclear power stations and building of North Stream pipeline by Gazprom. Few weeks after losing the elections he took a job sitting in Gazprom board.