枪械暴力是美国社会重大的公共议题之一，特别是在城市地区，并且与青年活动和帮派暴力息息相关。

枪支管制的相关政策一直是美国政治中的争议议题。持枪权的支持者和枪支管制的支持者（不等同反对持枪权）在该问题上分歧很大，经常在枪支管制、枪支造成和预防犯罪、公共安全等问题上争论不休。

“The Star-Spangled Banner” is the national anthem of the United States. The lyrics come from the “Defence of Fort M’Henry”, a poem written on September 14, 1814, by 35-year-old lawyer and amateur poet Francis Scott Key after witnessing the bombardment of Fort McHenry by British ships of the Royal Navy in Baltimore Harbor during the Battle of Baltimore in the War of 1812. Key was inspired by the large U.S. flag, with 15 stars and 15 stripes, known as the Star-Spangled Banner, flying triumphantly above the fort during the U.S. victory.

“In God We Trust” (sometimes rendered “In God we trust”) is the official motto of the United States of America and of the U.S. state of Florida. It was adopted by the U.S. Congress in 1956, supplanting E pluribus unum, which had been the de facto motto since the initial 1776 design of the Great Seal of the United States.

美利坚合众国（英语：United States of America，缩写为USA，一般称为United States（U.S.或US），或America），中文通称 美国。是由其下辖的50个州、华盛顿哥伦比亚特区、五个自治领土及外岛共同组成的联邦共和国。