President Trump and French President Emmanuel Macron vowed to pursue a “common response” to the Assad regime in Syria in the event of another chemical weapons attack, the French government said Tuesday after the two leaders spoke.

“The purpose of the meeting was to prepare for the bilateral meeting of the two presidents during the G20 meeting in Hamburg on 7 and 8 July,” the Elysee Palace said in a statement about the phone call between Trump and Macron.