How in the bfg the stop the giants?

In "The BFG" by Roald Dahl, the giants are stopped when the Big Friendly Giant (BFG) and Sophie enlist the help of the Queen of England. They expose the giants' existence and the threat they pose to children, prompting the Queen to orchestrate a plan. The British Army captures the giants and ultimately imprisons them in a deep pit, ensuring they can no longer harm anyone. This collaboration between the BFG, Sophie, and the Queen effectively neutralizes the giants' menace.