Over the past month, Syria and Russia have bombed 25 medical facilities in northwest Syria. We are appalled by the deliberate and systematic targeting of healthcare facilities and medical staff, which is a flagrant violation of international humanitarian law. Throughout the Syrian conflict, we have seen both Russia and the Syrian government attack hospitals prior to and during major offensives, their collective aims seeming to be the terrorising of civilians and reducing the ability of medics to treat sick and injured people.