This is a list of armies arranged by ordinal numeral.
3rd Corps, Third Corps, III Corps, or 3rd Army Corps may refer to:
1st Division or First Division may refer to:
2nd Division may refer to the following military units:
3rd Division may refer to:
In military terms, 4th Division may refer to:
9th Division, 9th Infantry Division or 9th Armoured Division may refer to:
27th Division or 27th Infantry Division may refer to:
I Corps, 1st Corps, or First Corps may refer to:
First Army may refer to:
Second Army or 2nd Army may refer to:
Third Army may refer to:
Eighth Army may refer to:
Fifth Army may refer to:
Sixth Army may refer to:
A number of nations have a Seventh Army:
18th Division or 18th Infantry Division may refer to:
Fourth Army or 4th Army may refer to:
Eleventh Army or 11th Army may refer to: