Ratified December 15, 1791
Bans the government from forcing homeowners to house soldiers in peacetime without consent, and even in wartime only "in a manner to be prescribed by law." A direct response to British practices before the Revolution; rarely litigated today, but it established an early, concrete right to privacy in one's own home.
No Soldier shall, in time of peace be quartered in any house, without the consent of the Owner, nor in time of war, but in a manner to be prescribed by law.