Operation Spring Shield () was an invasion of Syria by Turkey, which was in the Idlib region of northwest Syria, and which started on 27 February 2020 in response to the Balyun airstrikes. Turkish National Defense Minister Hulusi Akar said that the goal of the operation was inside of the rules of the Astana talks, to ensure a ceasefire in the Second Northern Syria Buffer Zone and to prevent migration from Idlib towards the Turkish border. On 5 March, Turkey and Russia signed a ceasefire agreement in Moscow.