Infantry Advances

The Martians landed in 1918 and most of the US Army was either at the Mexican border or overseas in Europe.

So heavy guns that had been pulled out of depot were used in the USA as field artillery.

The US troops prepare to fire.

It's a big gun, but the crew is about the same as a field gun.

The infantry move up under the cover of the heavy artillery.

The officer on horseback is commanding from up front.

The big gun supports that advance.