French President Emmanuel Macron is visiting Syria's leader Ahmed al-Sharaa ahead of a Nato summit on July 7. Even though the two leaders are expected to sign several contracts crucial for Syria's reconstruction, security is the main concern - both inside the country, but also in the region. Western leaders are increasingly testing al-Sharaa's capacity to ovecomes those security challenges. FRANCE 24's Marc Perelman and Clovis Casali tell us more.