Above: Spanish infantry in trenches, behind wire, covered by a block house (scratch built).
With a bit of (probably ahistorical) mountain artillery - Spanish general and staff in the background.
And, above and below, a regiment of Guardia. So, two regiments of foot, one battery of mountain guns, and fortified positions.
In the Red, White and Blue corner:
US General staff (or should that be old timer Confederate and US staff?),
and artillery and gatling gun support, think about the task:
Looking tricky, even for four regiments of these boys:
The Spanish are outnumbered more than two to one, but they're dug in and experienced. The US boys are mad keen, but have very poor command and control, and I've an idea about how to add that into ARD...