Paragraph 2 F1F2

The agreement shall be an express agreement, may be concluded verbally or in writing, either directly or through a Protecting Power or any impartial humanitarian organisation, and may consist of reciprocal and concordant declarations. The agreement may be concluded in peacetime, as well as after the outbreak of hostilities, and should define and describe, as precisely as possible, the limits of the demilitarised zone and, if necessary, lay down the methods of supervision.