A small piece of history that is usually forgotten is the role that some mostly Irish (but also other immigrants) who switched sides in the war.
Being immigrants, and noticing they had more in common with Mexicans than their American conscriptors (being Catholic, for instance), many decided to leave in a war that was seen as an extension of American imperialism.
The Saint Patricks battalion is still remembered by Mexican society, even being hailed by the Zapatistas as an act of solidarity. Though they were ultimately crushed, and Mexico was occupied and forced to give up nearly half its territory, it didn’t happen without a fight.
Here’s to brave soldiers who question orders.