In July 1969, Nixon visited South Vietnam, where he met with his U.S. military commanders and President Nguyễn Văn Thiệu. Amid protests at home demanding an immediate pullout, he implemented a strategy of replacing American troops with Vietnamese troops, known as "Vietnamization".
To replace the decimated SPGF, the Sarawak Communist Organisation created the North Kalimantan People's Guerrilla Force at Nonok on 13 July 1969.
After a nearly decade-long national effort, the United States won the race to land astronauts on the Moon on July 20, 1969, with the flight of Apollo 11. Nixon spoke with Neil Armstrong and Buzz Aldrin during their moonwalk. He called the conversation "the most historic phone call ever made from the White House"
The flight plan called for a crew rest period before extravehicular activity, but Armstrong requested the EVA be moved to earlier in the evening, Houston time. When he and Aldrin were ready to go outside, Eagle was depressurized, the hatch was opened, and Armstrong made his way down the ladder. At the bottom of the ladder Armstrong said, "I'm going to step off the LM now". He turned and set his left boot on the lunar surface at 02:56 UTC July 21, 1969, then spoke the now-famous words, "That's one small step for man, one giant leap for mankind."
About 19 minutes after Armstrong's first step, Aldrin joined him on the surface, becoming the second human to walk on the Moon. They began their tasks of investigating how easily a person could operate on the lunar surface. Armstrong unveiled a plaque commemorating the flight, and with Aldrin, planted the flag of the United States.
Franco decided to skip a generation and name Juan de Borbón's son, Prince Juan Carlos, as his personal successor. Franco hoped the young prince could be groomed to take over the nation while still maintaining the ultraconservative and authoritarian nature of his regime. In 1969, Juan Carlos was officially designated heir-apparent and was given the new title of Prince of Spain (not the traditional Prince of Asturias). As a condition of being named heir-apparent, he was required to swear loyalty to Franco's Movimiento Nacional, which he did with little outward hesitation. His choice was ratified by the Spanish parliament on 22 July 1969.
After they re-entered the LM, the hatch was closed and sealed. While preparing for the liftoff from the lunar surface, Armstrong and Aldrin discovered that, in their bulky space suits, they had broken the ignition switch for the ascent engine; using part of a pen, they pushed the circuit breaker in to activate the launch sequence. The Eagle then continued to its rendezvous in lunar orbit, where it docked with Columbia, the command and service module. The three astronauts returned to Earth and splashed down in the Pacific Ocean, to be picked up by the USS Hornet.