Wars Of The United States

• Afghanistan—11 years, 5 months (so far)
• Vietnam War—10 years, 9 months
• Second Iraq War—8 years, 10 months
• Revolutionary War—8 years, 5 months
• Civil War—4 years, 6 months
• World War II—3 years, 9 months
• Korean War—3 years, 2 months
• War of 1812—2 years, 7 months
• Mexican War—2 years, 1 month
• First Iraq War—7 months
• Spanish-American War—4 months

Robert DeVries

Related articles

• Top 10 deadliest American wars (americanlivewire.com)
• The Last Time America Declared War (reason.com)