An analysis of weapons captured in Lebanon shows that Hezbollah received advanced arms from Russia via the Syrian military
https://www.haaretz.com/israel-news/security-aviation/2024-12-08/ty-article-magazine/.premium/from-putin-to-assad-and-then-to-hezbollah-the-russian-weapons-found-in-lebanon/00000193-a762-d812-a3d3-aff2bbc10000