In a move that could change the course of the ongoing conflict, U.S. President Joe Biden has reportedly allowed Ukraine to use powerful, long-range missiles to strike targets deep inside Russia’s pre-2014 borders. This decision, if confirmed, marks a dramatic shift in Washington’s approach to the war and is likely to escalate tensions between the U.S., Ukraine, and Russia.

The news was first reported by The New York Times, which cited unnamed U.S. officials as sources. The White House ha...