In the 1960s, a country called the Soviet Union wanted to be the first to send people to the moon. They created a program to build a big spaceship called a rocket, which could take people to the moon. They called this program the Soviet Crewed Lunar Program.
The Soviets started by launching some unmanned spaceships to the moon to see if it was safe for people to go there. They sent a robot that looked like a car to drive around and take pictures of the moon's surface. Then they sent a spaceship that crashed into the moon to see how hard the surface was.
After these tests, the Soviets built a spacecraft called the LK-1, which would land on the moon and let a person get out and walk around. They also built a bigger spacecraft called the L3, which would carry the LK-1 and a crew of three people to the moon.
The Soviet Union sent several crews of astronauts to train for the mission, but they encountered many technical difficulties during the program. The program was eventually canceled due to lack of funding, technical issues, and being beaten to the moon by the United States in 1969.
In summary, the Soviet Crewed Lunar Program was a big effort to send people to the moon, which included building a big spaceship and training astronauts. However, the program was eventually canceled due to technical difficulties and lack of funding.