Erdogan Threatens to Send Refugees to Europe After Syria Criticism

Turkey's military action in northern Syria has drawn international condemnation, including from the Arab League and the UN. President Erdogan has threatened to send millions of Syrian refugees into Europe if criticism continues, recalling the political upheaval during the Syrian Civil War. While President Trump has warned of economic consequences, Erdogan's actions are constrained by Turkey's NATO membership and the need to maintain alliances.

What leverage does President Trump claim he has over President Erdogan?

Why is Turkey's membership in NATO significant in the context of its actions in Syria?