One might well regard the traditional methods of waging land warfare as battle, devastation and siege. This chapter begins by addressing quarter, the extent of the obligation to accept surrender. Devastation, starvation and siege are then addressed. The chapter concludes by addressing permissible and impermissible deception; and espionage and sabotage. The discussion is closely linked to the ICRC Customary International Humanitarian Law Study (CIHL) as Rules 46 to 69 of the Study constitute the most recent attempt at a relatively comprehensive overview of the topics addressed in the chapter.