The cycle of violence has contributed to an atmosphere of extreme mistrust and polarization, which has fuelled further antagonism and violence.
Wars, fuelled by the ready availability of arms, can create massive population displacement.
And what if it were all centralized, whether fuelled by gas, coal or nuclear?
He installed a heating system which is fuelled by willow coppice grown on his own farm.
The De'Longhi Quattro Plus model is priced at RRP £ 79.95 and fuelled by either a 7kg or 15kg cylinder of Calor gas butane.