Burgon opposed military intervention and the bombing of Syria following the November 2015 Paris attacks by ISIS militants. Burgon opposed the 2018 Missile Strikes Against Syria. At a protest against the strikes on Parliament Square, he said "The Prime Minister says that bombing of Syria was, in her words, "right and legal". I say it was wrong and immoral. It was wrong and immoral because it risks escalating a war that could involve up to a dozen countries. It was wrong because she never waited for the weapons inspectors to do their job. It was wrong because she never waited for Parliament to have its say."