What strategic actions did Israel take following the collapse of the Assad regime in Syria?

Following Assad's regime collapse, Israel swiftly capitalized on the opportunity by seizing strategic territories. On December 8th, as Assad fled to Russia, the IDF advanced from the Golan Heights to occupy the UN-established Purple Line buffer zone and surrounding areas without resistance. Israel secured an area approximately two-thirds the size of Gaza Strip, significantly disrupting supply routes critical to Iran and Hezbollah. Though Israel claims this occupation is temporary, the tactical move enhances their regional position while being rejected under international law by both the new Syrian government and global community.