Did Stalin Always Intend to Attack Hitler?

By 19 forty one had murdered around 500 thousand poles and tens of thousands of lithuanians, latians and estonians. But at no time did any western government criticise stalen's murderous ways - instead toadying to him in hopes he would help against hitler. What stalen missed was that the germans were far, far better at planning logistics and mobile war,. and the german morale was far higher than sovietDid stalin always intend to attack hitler? And hitler just beat him to it? Or, as most historians have said, was stalin surprised.