On Facebook, Harry Lewis sums it up nicely:
Trump's missile strikes on Syria (with British and French support) expose three truths devastating to the Syrians, Iranians, Russians, and Democrats (America's adversaries):
(1) unlike Obama, under the right circumstances, Trump will pull the trigger;
(2) Russia lied to John Kerry and Obama about disposing of Assad's chemical weapons in exchange for American inaction, and until Trump, we never called Russia or Syria on their lies;
(3) the Russian anti-missile systems for which Syria and Iran paid high prices are useless, and were a waste of money, a huge loss of face for Moscow.