It's like Russia was expecting to be able to conduct the largest aggressive conventional military operation in Europe since WW2 and not completely flip the apple cart of the global order.
In terms of troops and materiel deployed in the first few days, how does this compare to (either) Iraq, Afghanistan, Vietnam or Korea?
Afghanistan peak US troops: 102,000 (2011)
Gulf war peak US troops: 700,000 (1990-1991)
Iraq peak US troops: range from 168,000 - 192,000 (2007)
Vietnam peak US troops: 543,000 (1969)
Korea peak US troops: 320,000, unclear what year
edit: obviously, Russia's involvement in Ukraine over the last few days would be by far the biggest operation in Europe since WW2. Just not globally (by a long shot).