The Israeli Air Force conducted an airstrike on Aleppo International Airport in the early hours of Wednesday, forcing it to suspend operations, the Al Arabiya television channel reported.

According to the report, four missiles were fired towards the airport. Explosions were heard in Aleppo and Latakia.

Previously, the Israeli air force struck the airport on March 7. As a result, the facility had to suspend its operations for a few days.
https://tass.com/emergencies/1592635


Other countries are watching.
Russia is the protector of Syria(the West has been unable to depose Assad in Syria bc of President Putin's support). If Israel continues to attack Syria and Russia does nothing, it'll undermine the confidence of other countries that look up to Russia for protection against Western imperialism.
For illustration..Nigeria wants to move away from the Western sphere of influence but she knows she'll be attacked by the West...when Nigeria sees what the West does in Syria, Nigeria wouldn't want to be another Syria.
Provide weapons for Syrians and upgrade its air defense systems. Fine tune it's capability and capacity for retaliatory strikes and weak countries (like Nigeria) that are unable to protect themselves will do away with fear.