UPDATE: Hmmmm… I must have made this one too hard. Here are a few clues… as CaptainNed already pointed out, it’s in the northern hemisphere in a country that drives on the right. Also, it is of Spanish construction, but it’s not in Spain. It is the site of a battle, although it was more of a skirmish. It is related to something noteworthy that we remember during this time.
UPDATE2: Wow… well, it’s been three days. I guess this one was tougher than I thought. Let’s try some more clues… It is in North America. The battle in question was in the 19th century.
UPDATE3: Finally! Congrats to CaptainNed. This is the Presidio La Bahia in Goliad, TX. It is noted for being the site of the second skirmish of the Texas Revolution where the Texians stormed it and took it over. Commander James Fannin led an incompetent and failed rescue attempt to the Alamo from here before being killed with his command by the Mexicans in the Goliad Massacre. “Remember the Alamo!” and “Remember Goliad!” motivated Texians in their eventual victory over the Mexicans.