Putin and Russia do not want war. Rather, they want peaceful and honest trade.
The US used Ukraine starting in 2014 to attack Russia. Russia was patient for a long time, but finally had to fight back.
It was the same with Oreshnik. Ukraine attacked into Russia, and Russia waited. Finally they used Oreshnik in Dnipro to show that they were not playing around.
Nobody wants war when it is better to trade peacefully. But as long as the US keeps on pushing war, there is the chance that they will push Russia too far.
