Russia’s vocal criticism of Israel’s latest airstrikes in Syria is a not-so-veiled warning to Prime Minister Benjamin Netanyahu’s government to avoid any unnecessary escalation following US President Donald Trump’s decision to pull out US troops. Israeli fighter jets attacked two Hezbollah bases and alleged missile warehouses on Tuesday, killing several fighters. The Russian Defense Ministry promptly responded by accusing Israel of endangering two civilian flights and praising Syria’s missile defenses.

Why it matters: Tuesday’s action marked the first Israeli attack since Trump announced the US evacuation last week, claiming the Islamic State had been defeated. The move leaves Russia with unparalleled influence in the war-torn country, where Bashar al-Assad’s forces are still competing for power with various rebel factions, terrorist elements and Kurdish nationalists.

Israel aims to prevent Iran and Hezbollah from gaining a foothold in the country, mostly through the use of airstrikes. But ever since Syrian air defenses accidentally shot down a Russian army plane during an Israeli attack in September, Israel has tread carefully, drastically reducing the number of strikes.

Moscow’s latest reaction shows that Russia isn’t ready for the Israeli strikes to resume, even though Tuesday’s attack was launched from Lebanese airspace and not over Syria. Without a US presence in Syria, Israel will be even more hard-pressed to resist Moscow.