President Vladimir Putin is fast turning Russia into an outlaw nation. As one of five permanent members of the United Nations Security Council, his country shares a special responsibility to uphold international law. Yet, his behavior in Ukraine and Syria violates not only the rules intended to promote peace instead of conflict, but also common human decency.

This bitter truth was driven home twice on Wednesday. An investigative team led by the Netherlands concluded that the surface-to-air missile system that shot down a Malaysia Airlines plane over Ukraine in July 2014, killing 298 on board, was sent from Russia to Russian-backed separatists and returned to Russia the same night. Meanwhile, in Syria, Russian and Syrian warplanes knocked out two hospitals in the rebel-held sector of Aleppo as part of an assault that threatens the lives of 250,000 more people in a war that has already claimed some 500,000 Syrian lives.

Russia has tried hard to pin the blame for the airline crash on Ukraine. But the new report, produced by prosecutors from the Netherlands, Australia, Belgium, Malaysia and Ukraine, confirms earlier findings. It uses strict standards of evidence and meticulously documents not only the deployment of the Russian missile system that caused the disaster but also Moscow’s continuing cover-up.