Halls of Montezuma recreates the Mexican-American war of 1846-1848. Play the USA and conquer Mexico City before Whig opposition in Congress forces a negotiated peace. As Mexico, hold desperately against the enemy’s onslaught, to gain enough time for America's internal politics to end the war.
A few sets of data were outdated in the game (mostly regarding naval units) and were fixed. This mostly impacted naval battles where the US Navy was not able to fire.
Some minor text fixes in the localization too.