Related Rule
Australia
Practice Relating to Rule 64. Conclusion of an Agreement to Suspend Combat with the Intention of Attacking by Surprise the Adversary Relying on It
Australia’s LOAC Manual (2006) states: “To demand a cease-fire and then to break it by surprise, or to violate a safe conduct or any other agreement, in order to kill, wound or capture enemy troops would be perfidious.” 
Australia, The Manual of the Law of Armed Conflict, Australian Defence Doctrine Publication 06.4, Australian Defence Headquarters, 11 May 2006, § 7.4.
The LOAC Manual (2006) replaces both the Defence Force Manual (1994) and the Commanders’ Guide (1994).