What is the main conflict in Bravo Two Zero by Andy McNab?

"Bravo Two Zero" by Andy McNab, Sergeant, SAS, tells the story of a soldier in the British Special Forces in the early 1990s. In January of 1991, Andy and seven other men were sent behind Iraqi lines to complete a top-secret mission called Bravo Two Zero. The story tells of the struggles they faced from communication failure to snowstorms and captivity.