The red lines were crossed when Putin invaded any part of Ukraine, and wester leaders were stupid to not make the 100% clear, before hand. I wish we could get to Biden’s call to Putin just before the invasion; what did Biden NOT say about “red lines”. I am sure Trump would not have been cagey or ambiguous.
The line was crossed in 2014 when Russia invaded an annexed the Crimean Peninsula.
Makes one think maybe everything is going according to plan...