Related Rule
United States of America
Practice Relating to Rule 131. Treatment of Displaced Persons
Section B. Security of displaced persons
The US Field Manual (1956) reproduces Article 49 of the 1949 Geneva Convention IV. 
United States, Field Manual 27-10, The Law of Land Warfare, US Department of the Army, 18 July 1956, as modified by Change No. 1, 15 July 1976, § 382.
The US Soldier’s Manual (1984) provides that, when civilians are moved or resettled, soldiers “should take action to ensure their safety”. 
United States, Your Conduct in Combat under the Law of War, Publication No. FM 27-2, Headquarters Department of the Army, Washington, November 1984, p. 22.