The only way I see a peaceful resolution is if Turkey apologises profusely and changes its ROE so it is not so trigger happy in the future. Does not seem to be going that way though so Putin really has no choice but to respond. The next 24-48 hours will be crucial.
I am sure the WH is working the phone to defuse this and would not be surprised if Kerry or Biden made an unscheduled trip to Ankara very soon.
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