Putin has put NATO on the spot with Russian drone incursion in Poland. What comes next?

Russian President Vladimir Putin’s main target in the drone incursion into Poland was not necessarily the civilian home that was hit in the eastern town of Wyryki, or to close airspace around the capital Warsaw’s busiest airport. The Kremlin head appears to have been was aiming at NATO confidence and unity, with a partial glancing blow seemingly directed at US President Donald Trump.