With no food aid, 65-year-old Saeedah Mohammed heads out with a plastic bag to pick tree leaves near her displacement camp in southern Yemen, before serving them to her grandchildren to stave off hunger. Behind the camp wooded hills stretch under a clear sky, while on the ground, yellowed and stony earth is strewn with rubbish. Amid the trash and destitution, daily life manages to organise itself, however imperfectly. Worn-out clothes dry on lines strung between spindly trees, and two old...