Melvyn Levitsky, Money Control: "(Biden's visit to Ukraine) shows the US’s and NATO’s support for Ukraine. It is also a warning to Russia and Putin not to escalate. Putin knows that a nuclear exchange would destroy Russia as well as a number of countries in the surrounding territory. His own military might stop him if he were crazy enough to order a nuclear first strike. Still, any threat of that kind should be taken seriously and prepared for."
