We Japanese witnessed this more than half a century ago when we fought against the Americans.
When one of their military aircraft was shot down and the pilot found himself adrift alone in the vast Pacific, they did not hesitate to send out a Catalina flying boat to search for him and rescue him, despite the risk of being shot down themselves.
We were not capable of doing that.
And so we were defeated.
In that sense, the Americans have not changed at all since those days.
That is precisely what makes them America.