Portugal–Spain relations small Portuguese Marine Corps combat detachment and two wardens of Madeira's Natural Park. Over the years the Portuguese authorities have seized some Spanish fishing boats and crew around the area for illegal fishing and theft of light beacons and navigation buoys. As of 2017 Spain had approved a nuclear waste warehouse next to the Almaraz Nuclear Power Plant (which uses the Tagus river that flows into Portugal for cooling of the reactors), which is near the Portugal–Spain border, without carrying out any consultations or impact studies. Portugal has escalalted the matter to the EU. Protests were planned for January 12,
Portugal I of Portugal signed with the king Fernando IV of Castile (which was represented, when being a minor, by his mother the queen Maria de Molina) the Treaty of Alcañices (1297), which stipulated that Portugal abolished agreed treaties against the kingdom of Castile for supporting the infant Juan de Castilla. This treaty established inter alia the border demarcation between the kingdom of Portugal and the kingdom of Leon, where the disputed town of Olivenza was included. The reigns of Dinis I (Denis I), Afonso IV (Alphons IV), and Pedro I (Peter I) for the most part saw peace with the