Despite past disputes and new frictions between President Trump and Turkish President Erdogan, many key issues remain unresolved and could impact Israel. Turkey's opposition to Trump's Gaza relocation plan and support of Hamas may pressure US officials. Trump's potential pullout of Syria could facilitate the expansion of pro-Turkish Islamist forces and other hostile actors, threatening Israel. Turkey's purchase of Russia's S-400 air defense system has also strained relations with the US. Israel should urge the US to curtail Turkey's destabilizing behavior and monitor its evolving relationship with Iran.