Bunker near Irún

A military bunker located near Irún, Spain, in the Basque Country. This structure is part of Spain's defensive network built during the mid-20th century, likely associated with the P Line fortifications constructed along the Pyrenees to defend the Spanish-French border. These bunkers were part of Spain's strategic preparations during and after the Spanish Civil War, as the country sought to protect its northern frontier despite being exhausted from years of conflict.