Related Clues:

• Investment
• Operation at the Alamo
• Long attack
• Long series of troubles
• Preattack tactic
• Onslaught
• Prolonged battle
• Type of mentality
• Battle strategy
• Assault on Troy, e.g.
• War tactic
• Crusades tactic
• Military assault
• Wartime tactic
• Long, drawn-out attack