Brief synthesisThe transnational serial property “Funerary and memory sites of the First World War (Western Front)” comprises 139 component parts spread across the Western Front, the decisive front that was active throughout the First World War (1914-1918). The funerary and memory sites are permanent and form a remarkable architectural ensemble, reflecting both national and transnational aesthetic models. As markers of the war that initiated the cycle of 20th-century violence, the funerary and memory sites have become places of transmission and awareness. Criterion (iv): The ensemble of funerary and memory sites of the First World War (Western Front) provides an exceptional illustration of the First World War and its consequences, an era of profound significance in human history. They are complementary sites of memory, each linked to specific events of the First World War.