The far right broke out on social media to express distaste for Trump's decision to launch airstrikes in Syria in response to Syrian President Bashar al-Assad's use of banned chemical weapons against its citizens earlier this week.

Why the resistance? Because it is "the most legally doubtful use of military force by a NATO state in recent history," as Craig Forcese, Professor of security and public international law at the University of Ottawa Faculty of Law, puts it. There are two instances where a state can use force against another: for self-defense or when the Security Council authorizes it.

Here's what they're saying: