In the American Revolution of 1776-1781, the Americans were all British citizens who had a duty to honor and respect the British government. The British government was not enslaving or raping Americans (White Americans were doing that to Black Americans, but that is a different matter.) They were not carrying out genocide or running concentration camps. The British government simply imposed taxes that some of the people in the 13 colonies did not like. But today, we have taxes that some Americans do not like. There will always be taxes that lots of people will not like. Does taxation really ever justify shooting government soldiers in the head with a rifle--because that is what the American soldiers in the American Revolution did.
In the Mexican-American War of 1846-1848, President Polk carried out a plan of his own making to obtain by force the Mexican states of Alta California and Nuevo Mexico. He had earlier tried to obtain those states by negotiation and payment, but the Mexican government refused to even meet with the emissary that President Polk sent to Mexico City to make a deal. The Mexican states of Alta California and Nuevo Mexico were larger than the current-day USA states of California and New Mexico. The Mexican states of Alta California and Nuevo Mexico contained, besides today's California and New Mexico, Nevada, Arizona, Colorado, and Utah. President Polk's plan was to provoke a conflict over the dispute over southern border of Texas, and then to use that fighting in southern Texas (down by the Rio Grande) to justify an invasion and occupation of the the faraway Mexican-states of Alta California and Nuevo Mexico, and to also justify an invasion and occupation of all the major cities of Mexico. The US government refused to end its occupation of Mexico City until the Mexican government agreed to cede to the USA all the 2 Mexican states that President Polk had tried to buy from Mexico before the war. In the end, the US government got the 2 Mexican states and paid a few million dollars to the Mexican government. But since the deal was done "at gunpoint," it was not a valid sale per all forms of law in all countries and in all times. Abraham Lincoln, was was a member of the U.S. House of Representatives, publicly condemned President Polk for his dishonest and unjust actions and motives in starting the Mexican-American War. Later, Ulysses S. Grant, who was an officer in the Mexican-American War, condemned it as the most unjust thing he'd ever seen.
About 1/3 of the land in the lower 48 states of the USA was thus obtained by theft and murder. Or so it seems. The professional historians all seem to know this, yet few Americans seem to know this.
And I really never hear anyone asking if the American Revolution of 1776-1781 was perhaps, by Catholic just war standards, an unjust war.
In 2003, Blessed Pope John Paul II strongly condemned as unjust the planned and ultimately carried out 2003 USA and UK invasion and occupation of Iraq. Yet, it seems like virtually no one in the USA paid any attention to that.
It seems like we have been deceived. It seems like we pay no attention to what our Church teaches, and just listen to "patriotic" propaganda.