What is Unifil and why has Israel been firing on its positions in Lebanon?

"The IDF's recent actions have raised grave concerns within Unifil, with repeated firings on our positions being particularly alarming and endangering the safety of our personnel."

"Unifil was established to ensure peace along the Lebanon-Israel border, but the ongoing hostilities have rendered our mission increasingly complicated, given Hezbollah's dominance in the south."

Read at www.theguardian.com