The United States gave off more than one signal that their NATO allies (particularly Germany) should stop violating the written agreement and spend the required 2% of GDP on defense. Some of our European allies were just freeloaders, taking advantage of US security guarantees without contributing any meaningful capabilities in return.
https://www.nato.int/cps/en/natohq/topics_67655.htm
Germany has now agreed to fulfill their NATO spending obligations as a response to Russian aggression. Better late than never.
https://www.dw.com/en/germany-commits-100-billion-to-defense...