List of the lengths of American participation in major wars

Lengths of U.S. conventional combat forces' participation in major wars
{| class="wikitable sortable" cellpadding="6" cellspacing="2" style="border:1px solid #cccccc;" bgcolor="#cccccc" !||War||Dates||Duration||class="unsortable"|Timeline
 * style="text-align:right"| 1. || War in Afghanistan || 2001/10 – 2014/12 || years (13 years, 2 months) ||
 * style="text-align:right"| 2. || Vietnam War || 1962/05 – 1973/01 || years (10 years, 8 months)||
 * style="text-align:right"| 1. || War in Afghanistan || 2001/10 – 2014/12 || years (13 years, 2 months) ||
 * style="text-align:right"| 2. || Vietnam War || 1962/05 – 1973/01 || years (10 years, 8 months)||
 * style="text-align:right"| 2. || Vietnam War || 1962/05 – 1973/01 || years (10 years, 8 months)||


 * style="text-align:right"| 3. || Iraq War || 2003/03 – 2011/12       ||  years (8 years, 9 months) ||
 * style="text-align:right"| 4. ||American Revolutionary War || 1775/04 – 1783/09 || years (8 years, 5 months) ||
 * style="text-align:right"| 4. ||American Revolutionary War || 1775/04 – 1783/09 || years (8 years, 5 months) ||
 * style="text-align:right"| 4. ||American Revolutionary War || 1775/04 – 1783/09 || years (8 years, 5 months) ||


 * style="text-align:right"| 5.|| American Civil War || 1861/04 – 1865/04 || years||
 * style="text-align:right"| 6. || World War II || 1941/12 – 1945/08 || years (3 years, 8 months) ||
 * style="text-align:right"| 6. || World War II || 1941/12 – 1945/08 || years (3 years, 8 months) ||
 * style="text-align:right"| 6. || World War II || 1941/12 – 1945/08 || years (3 years, 8 months) ||


 * style="text-align:right"| 7. || Korean War || 1950/06 – 1953/07 || years (3 years 1 month)  ||
 * style="text-align:right"| 8. || War of 1812 || 1812/06 – 1814/12 || years (2 years, 6 months) ||
 * style="text-align:right"| 8. || War of 1812 || 1812/06 – 1814/12 || years (2 years, 6 months) ||
 * style="text-align:right"| 8. || War of 1812 || 1812/06 – 1814/12 || years (2 years, 6 months) ||


 * style="text-align:right"| 9. || Mexican-American War || 1846/05 – 1848/02 || years (1 year, 10 months) ||
 * style="text-align:right"|10. || World War I || 1917/04 – 1918/11 || years (1 year, 7 months) ||
 * style="text-align:right"|10. || World War I || 1917/04 – 1918/11 || years (1 year, 7 months) ||
 * style="text-align:right"|10. || World War I || 1917/04 – 1918/11 || years (1 year, 7 months) ||


 * style="text-align:right"|11. || Spanish-American War || 1898/05 – 1898/12 || years (8 months)  ||
 * style="text-align:right"|12. || War on ISIL || 2014/06 – present || years (6 months)   ||
 * style="text-align:right"|13. || Persian Gulf War || 1990/08 – 1991/02 ||  years (7 months)   ||
 * style="text-align:right"|12. || War on ISIL || 2014/06 – present || years (6 months)   ||
 * style="text-align:right"|13. || Persian Gulf War || 1990/08 – 1991/02 ||  years (7 months)   ||
 * style="text-align:right"|13. || Persian Gulf War || 1990/08 – 1991/02 ||  years (7 months)   ||


 * style="text-align:right"| 14. || Kosovo War ||1999/03 – 1999/06 || 0.3 years (118 days) ||
 * }
 * }
 * }

(Ongoing wars indicated in bold and with orange bars.) Sources: Associated Press, PBS