Former President Jimmy Carter said Thursday that Russia’s invasion of Ukraine violates international law and “threatens security” in Europe and around the globe, joining the other living former Presidents in condemning the Kremlin’s attack on its neighbor.

“Russia’s unprovoked attack on Ukraine using military and cyber weapons violates international law and the fundamental human rights of the Ukrainian people,” Carter said in a statement posted on Twitter. “I condemn this unjust assault on the sovereignty of Ukraine that threatens security in Europe and the entire world, and I call on President Putin to halt all military action and restore peace.”

The US and allies, the former