What different types of weapons were used in the lost battlion?

During WWI, there was a wide range of new and old weapons, including:

Rifles. All nations used more than one type of firearm during the WWI

They had used machine guns.

They had recently developed flamethrowers.

Mortar shells.

Airstrike/artillery.

Poisonous gasses.

Large, steel tanks.

And further developed aircraft.

Have a great day!

-Pepetreefrogthe2nd

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.