Who is the commander of the militia regiment in Meryton?

Colonel Forster is the commander of the militia regiment stationed in Meryton. His regiment brings officers, including George Wickham and Captain Denny, into the Hertfordshire social scene where the Bennet sisters meet them.

The militia’s presence is important to the plot because it creates the setting in which Lydia Bennet becomes fascinated by military uniforms and officers. Wickham’s charm and attentions flourish in this environment, while Lydia’s impulsiveness eventually contributes to her elopement with him. Colonel Forster is married to Mrs. Forster, who becomes one of Lydia’s companions.

Captain Denny is an officer in the regiment, not its commander. Wickham is another officer, but his rank and personal history are distinct from Forster’s command. Mr. Collins is a clergyman and heir to Longbourn, so he has no military role. Colonel Forster later learns more about Wickham’s debts and misconduct after Lydia’s disappearance.