Question: Cabrillo National Monument commemorates the landing of the navigator who explored North America for what country?

<P0-S0> The Military Working Dog Teams National Monument is a U.S. National Monument located at Lackland Air Force Base in San Antonio, Texas. <P0-S1>  It was founded by John C. Burnam, published author and Vietnam Veteran Infantryman and German Shepherd Scout Dog Handler (1966-1968). <P0-S2>  The monument was designed by the John Burnam Monument Foundation. <P0-S3>  It represents all wars since World War II and all five U.S. Armed Services (Army, Marines, Navy Air Force, and Coast Guard). <P0-S4>  The monument grounds encompass a 3,000 square feet granite plaza, granite pedestals, granite history wall, and granite benches. <P0-S5>  The granite pedestals have large bronze statues of dogs and handlers. <P0-S6>  Cost of construction was provided by corporate sponsors and public donations raised by the John Burnam Memorial Foundation. <P0-S7>  The monument was dedicated during a formal military ceremony on October 28, 2013. <P0-S8>  One of the inscriptions reads: "Dedicated to all U.S. Military Working Dog Handlers and their beloved dogs who defend America from harm, defeat the enemy, and save lives." <SEP> <P1-S0>  Cabrillo was the first European to navigate the coast of present-day California in the United States. <P1-S1> Juan Rodríguez Cabrillo, also known as João Rodrigues Cabrilho (born 1499, died January 3, 1543), was a navigator and explorer, known for exploring the West Coast of North America on behalf of the Spanish Empire. <SEP> <P2-S0> Cabrillo National Monument is at the southern tip of the Point Loma Peninsula in San Diego, California. <P2-S1>  This event marked the first time a European expedition had set foot on what later became the West Coast of the United States. <P2-S2>  It commemorates the landing of Juan Rodríguez Cabrillo at San Diego Bay on September 28, 1542. <P2-S3>  The site was designated as California Historical Landmark #56 in 1932. <P2-S4>  As with all historical units of the National Park Service, Cabrillo was listed on the National Register of Historic Places on October 15, 1966. <SEP> <P3-S0> Aniakchak National Monument and Preserve is a U.S. National Monument and National Preserve, consisting of the region around the Aniakchak volcano on the Aleutian Range of south-western Alaska. <P3-S1>  The 601294 acre monument is one of the least-visited places in the National Park System due to its remote location and difficult weather. <P3-S2>  The area was proclaimed a National Monument on December 1, 1978, and established as a National Monument and Preserve on December 2, 1980. <P3-S3>  The National Monument encompasses 137,176 acres and the preserve 464,118 acre . <P3-S4>  Visitation to Aniakchak is the lowest of all areas of the U.S. National Park System, according to the NPS, with only 134 documented recreational visits in 2014. <P3-S5>  Most visitors fly into Surprise Lake inside Aniakchak Crater, but the frequent fog and other adverse weather conditions make landing in the lake difficult. <P3-S6>  It is also possible to fly into the nearby village of Port Heiden and proceed overland to the Aniakchak Crater.