Operation Rockingham was a special team, sort of like a secret club, that the United States government put together in 1967. This club was made up of people from different parts of the government, like the CIA and the Department of Defense.
The job of Operation Rockingham was to gather information about what was happening in other countries, especially during wars that the United States was involved in, like the Vietnam War. They wanted to know things like who the enemy was, how they were fighting, and what kinds of weapons they were using.
To get this information, the members of Operation Rockingham used a lot of different tools. They talked to people who were fighting in the war, like soldiers and spies. They also read a lot of documents and reports, and even looked at photographs and videos to see what was going on.
Some people thought that Operation Rockingham was doing things they shouldn't be doing. They thought that they were using their power to spy on innocent people and break the law. But others thought that what they were doing was important, because it helped to keep the United States safe.
Eventually, Operation Rockingham was shut down in 1998, after some people found out some of the things they were doing. But even today, some people still talk about this secret club and what they did.