US, NATO seek to shore up defenses as Russia-Ukraine conflict rages

Russia’s military incursion against Ukraine has raised questions about what would trigger a military response to the conflict from the U.S. and NATO.

Washington has bolstered NATO’s defense capabilities along the eastern flank, and the alliance recently decided to activate elements of the NATO response force for the first time in history.

But experts agree that the organization itself would need to be threatened in order to trigger a heavy military response from the alliance, which they say doesn’t seem likely at the moment.