The Rock of Gibraltar, as seen from the Spanish town of La Linea de la Concepcion, at Spain's southern tip. Gibraltar has been British territory for 301 years, but many Spaniards want it back. Fresh squabbles over fishing rights cropped up recently. Lauren Frayer/NPR hide caption

itoggle caption Lauren Frayer/NPR

A dispute over fishing rights at Gibraltar has grown into an international spat between Britain and Spain. Here, cars sit in line at the border crossing between Spain and Gibraltar earlier this month. Marcos Moreno/AFP/Getty Images hide caption

itoggle caption Marcos Moreno/AFP/Getty Images