‘It will be a catastrophe’: fate of Syria’s last aid channel rests in Russia’s hands

Possible veto of Bab al-Hawa UN aid crossing could halt the flow of vital food and health supplies to 3.4 million people

Just over half a mile away from the Bab al-Hawa border crossing connecting Syria and Turkey a 6th-century triumphal arch still stands, the remains of a Roman road stretching straight as an arrow on either side. For millennia this part of the world has been a crossroads of trade, culture and history. Today, it's more important than ever.

Bab al-Hawa is Syria's last lifeline, through which vital UN aid supplies for 3.4 million people living in the war-torn north-west of the country arrive. But before 10 July, the security council must vote in New York on whether to keep the aid flowing. What might seem like an obvious decision to outsiders is actually far from certain: Russia may use its veto power as a permanent member of the council to close the UN's last access point, as it has managed to do with the other three aid crossings.