Like Novichok being used by Russia in England to assassinate UK citizens. I don't get why the west is afraid of escalation when Russia just does whatever they

Like Novichok being used by Russia in England to assassinate UK citizens. I don't get why the west is afraid of escalation when Russia just does whatever they want. Russia shows no restraint. They crashed an expensive NATO drone recently. Correct response is to shoot down their planes if they crash ours. https://en.wikipedia.org/wiki/Poisoning_of_Sergei_and_Yulia_Skripal https://en.wikipedia.org/wiki/Poisoning_of_Sergei_and_Yulia_...