Most were executed. Stalin wasn't the kind of guy who liked to leave high-profile enemies around.
Zhukov, Konev, Voroshilov, Timoshenko, Budyonny, Vasilevsky, Rokossovsky, Tolbukhin, Malinovsky, Bagramyan... I can continue.
All of them were executed? Or appeared from nowhere before war? From your messages, it looks like you think that almost all high commanders were executed before start of war.
Senior officers? Damn right you can. You can bloody well require it. It's not like their was a dearth of opportunity either.
Yes, they were required, no doubt. Hundreds of thousands officers with good combat experience, for 5 million army, would be good to have. The question is where to find them?
Just two decades previously there had been a massive civil war, and, ya know, WWI. It's not like the Red Army was particularly inactive during the 30's for chrissakes. You mentioned the occupation of Lithuania, do the invasions of Poland, Finland, Latvia or Estonia ring a bell?
- WW1 and civil war were 20 years before - quite a long time.
- Incorporation of Latvia, Estonia and Lithuania didn't create any combat experience.
- "Invasion of Poland" - If you mean liberation of Western Ukraine and Belorussia in 1939, after Poland's occupation in 1920, it also didn't create a lot of experience, as army of Poland already didn't exist at the moment.
- Finland - agree, but anyway scale of conflicts are incomparable.
The Wehrmacht had 3600 Panzers on the Eastern Front alone. I do not find the creation of under-strength mechanized corps consisting of obsolete poorly maintained technology particularly impressive. Am I supposed to?
Sure, Industiralisation was vital, but it says nothing about the efficacy of the Red Army circa 1941. I mean, what kind of nations prepares to 'fight for its survival' by killing off its officers? Either Stalin was mighty stupid, or quite possibly he had a few ulterior motives.
Technically, Red Army and Wehrmacht in 1941 had pretty much the same power. Germans had more experience and superior strategic and tactical skills, as we can see from WW2 events before 1941. All war preparations, including absolutely necessary enforced industrialization, allowed us to keep up with much more technically advanced, already industrialized enemy.