The form, shape and color of these signs are defined by the rules of international humanitarian law.
The misuse of protective signs is a violation of international humanitarian law and punishable under the national law of all countries who are state parties to the respective treaties.
Using protective signs in order to injure, kill, or capture the enemy (perfidy) is a war crime.
[1][2] The following signs have a protective meaning under certain conditions: Of these symbols, the distinctive flag of the Roerich Pact was superseded by the distinctive marking of cultural property as defined by the Hague Convention of 1954.
As all countries bound by the Washington Treaty of 1935 have ratified the convention of 1954, it is effectively out of use.