The 2nd amendment
well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
The history of the 2nd amendment
During the 1760s revolutionary period, the established colonial militia was composed of colonists, including many who were loyal to British imperial rule. As defiance and opposition to British rule developed, a distrust of these Loyalists in the militia became widespread among the colonists, known as Patriots, who favored independence from British rule. As a result, some Patriots created their own militias that excluded the Loyalists and then sought to stock independent armories for their militias. In response to this arms build up, the British Parliament established an embargo on firearms, parts and ammunition on the American colonies.
Supreme court case
On June 26, 2008, in District of Columbia v. Heller the United States Supreme Court issued its first decision since 1939 interpreting the Second Amendment to the United States Constitution. The Court ruled that the Second Amendment to the U.S. Constitution confers an individual right to possess a firearm for traditionally lawful purposes such as self-defense. It also ruled that two District of Columbia provisions, one that banned handguns and one that required lawful firearms in the home to be disassembled or trigger-locked, violate this right.