The Israeli military said it targeted Syrian antiaircraft batteries, missile depots, manufacturing facilities, drones, helicopters, fighter jets, tanks, hangars, radars and 15 naval vessels.

Kremlin spokesman Dmitry Peskov highlighted Russia’s need to ensure the security of its diplomatic facilities and its military bases in Syria, where Russian troops were based for years supporting the Syrian military in the country’s civil war.

The Russian military sites in Syria include a naval port on the Mediterranean Sea to berth submarines and an airfield to project power across the Middle East and Africa. But after rebels ousted Kremlin-backed President Bashar al-Assad, the future of these installations is uncertain.