You're missing a few wars from your list there, mrswdk. In addition to your list, we have:
18th Century
Chickamauga War - US vs. Cherokee
Northwest Indian War - US vs various tribes, Britain
Whiskey Rebellion - US vs. tax protestors
Quasi-War - naval war between the US and France, part of the French revolution
19th Century
First Barbary War - response to piracy from the Barbary States
Tecumseh's War - war with various tribes; bleeds over into the War of 1812
Creek War
Second Barbary War
First Seminole War
Texas-Indian Wars
Arikara War - vs. the Arikara tribe
Aegean Sea Anti-Piracy conflict - Greek pirates, this time
Winnebago War - another conflict with native tribes
First Sumatran expedition - response to the massacre of a merchatman ship
Black Hawk War
Second Seminole War
United States Exploring Expedition - expedition around the world with relatively low casualties, but around 30 US sailors and soldiers killed, around 82 natives from Fiji and Tabiteuea
Second Sumatran expedition
Cayuse War
Taiping Rebellion - Yep, the US was involved in this one.
Apache Wars
Bombardment of Greytown on the Mosquito Coast
Puget Sound War
Rogue River Wars
Third Seminole War
Yakima War
Filibuster War - a civil war in Nicaragua that saw the US, Nicaraguan forces, Costa Rica, Honduras, the Mosquito Coast, Guatemala, El Salvador, and the UK fight against a group led by American William Walker
Second Opium War - yep, the US was in this one, too.
Utah War
Navajo Wars
First and Second Cortina Wars - the US and Confederacy teamed up to fight Mexico
Paiute War
Reform War
Bombardment of Qui Nho'n - Vietnam
Yavapai Wars
Dakota War of 1862
Colorado War
Shimonoseki War - vs. the Choshu domain in Shimonoseki, Japan
Snake War
Powder River War
Red Cloud's War
Comanche Campaign
US expedition to Korea - brought about by yet another attack on a merchant ship
Modoc War
Red River War
Las Cuevas War - war is thirsty work
Great Sioux War of 1876
Buffalo Hunters' War
Nez Perce War
San Elizario Salt War
Bannock War
Cheyenne War
Sheepeater Indian War
Victorio's War
White River War
Pine Ridge Campaign
Garza Revolution - For once, the US and Mexico teamed up in this one
Brazilian Naval Revolt
Yaqui Wars
Second Samoan Civil War
Philippine-American War
Moro Rebellion - Part 2 in the Philppine-American War
Boxer Rebellion - yep, the US was in this one, too
20th Century
Crazy Snake Rebellion - US vs the Creek nation
Border War - part of the Mexican revolution
Occupation of Nicaragua - part of the Banana Wars
Occupation of Haiti - ditto
Occupation of the Dominican Republic - see above
Russian Civil War - Allies vs. the Russian communist groups - the US' first defeat in a war
Posey War - the final Indian War in US history
Intervention in Lebanon, 1958
Bay of Pigs Invasion - another defeat
Dominican Civil War
Multinational Force in Lebanon - part of the Lebanese War - 1982-84
Invasion of Grenada - 1983
Invasion of Panama - 1989-90
Iraqi No-Fly Zones - continued until 2003
Somali Civil War - fought to fulfill a UN humanitarian mandate
Intervention in Haiti - reinstated Jean-Bertrand Aristide as president of Haiti
Bosnian Wars - with NATO
Kosovo War
21st Century
War in Pakistan
Operation Ocean Shield - vs. Somali pirates this time
Libyan Civil War
War on ISIL
Source:
https://en.wikipedia.org/wiki/List_of_w ... ted_StatesSo, yeah, the motivations behind going to war are pretty diverse and complex. Which of these wars were about political or religious ideologies, though? For the most part, they're wars to conquer territory, secure resources, intervene in humanitarian crises, or respond to attacks (pirates or terrorists).
But just look at Somalia and Bosnia. Those wars are far, far different from the Indian Wars of the 18th and 19th centuries.