Forrest tells the story of his time serving in the Vietnam War. He and his unit were searching for the Viet Cong, nicknamed "Charlie," and needed to be cautious of ambushes and other attacks. As Forrest tells his story, he describes the climate and terrain of the country.
Sam Houston leads his troops to victory against General Santa Anna's forces, who have set up camp in a vulnerable spot. Because the Texians were familiar with the terrain, which had many thick oak groves separated by marshes, and were in a location with strong cover against fire, they were able to win the battle so quickly and with much fewer losses. The clip mentions facts about the battle, including that Santa Anna's forces were defeated in just 18 minutes.
Irish Republican Army recruits fighting in the Irish War of Independence group up and train in guerilla warfare tactics. The more experienced fighters teach the new recruits how to better position themselves when traveling through terrain. They also illustrate to the newer recruits that they are in peril if even a small portion of their body is visible to the enemy.