BAN PHUM SAROL school in eastern Thailand has an unusual display of pieces of broken metal in the foyer. At first glance they look a bit like machine parts and water pipes. But a closer look reveals what they are: melted and twisted fragments of shrapnel, the fins from mortar bombs, and the casings of rockets fired from Katyusha launchers.
In 2011, this primary school a few kilometers north of the disputed Preah Vihear temple was on the front line of an escalating border conflict between Thai and Cambodian troops that claimed dozens of lives.
The first warning came when a mortar round struck the playground in the late afternoon. Fortunately the children had already gone home, although some teachers were still at work. Over the next few hours, the school, nearby homes, and streets of the village came under heavier fire from Cambodian artillery.