Since the outbreak of war in Syria, the entire Lebanese border has become a red zone: travellers from the West are advised by their governments to give it a wide berth. Yet once in the field, only the odd military checkpoint serves to remind travellers that tensions in the area remain high. In the Bekaa Valley, Hezbollah – the Party of God – holds sway. Wielding considerable political, military and social clout, this powerful Shia Islamist organisation is government, parliament and welfare state rolled into one. By Eric Lafforgue