The United States is one of few major powers that did not agree to IV-3 of the Hague Convention of 1899, and thus is able to use this kind of ammunition in warfare, but the United States ratified the second (1907) Hague Convention IV-23, which says "To employ arms, projectiles, or material calculated to cause unnecessary suffering", similar to IV-3 of the first Convention. For years the United States military respected this Convention and refrained from the use of expanding ammunition, and even made special FMJ .22LR ammunition for use in High Standard pistols that were issued to the OSS agents and the Savage Model 24 .22/.410 combination guns issued in the E series of air crew survival kits. After announcing consideration of using hollow point ammunition for side arms, with a possible start date of 2018, the United States Army began production of M1153 special purpose ammunition for the 9×19mm Parabellum with a jacketed hollow point bullet at per second for use in situations where limited over-penetration of targets is necessary to reduce collateral damage.
