But, as every thing depends upon the strength of the army and of the units of which it is composed, as well as upon the character of the operations in which it may be engaged, the arrangement may be greatly varied. I cannot go into these details, and shall simply exhibit the principal combinations that may result from forming the divisions in two or three brigades and the corps in two or three divisions. I have indicated the formation of two infantry corps in two lines, either one behind the other, or side by side. (See Figures from 17 to 28 inclusive.) _Different Formations of Lines of Battle for Two Corps of Infantry._ [Illustration: Fig. 17. Two Corps deployed, One behind the Other.] First Corps. ----- ----- ^ ----- ----- 2d Division. | 1st Division. Second Corps. ----- ----- ^ ----- ----- 2d Division. | 1st Division. [Illustration: Fig. 18. Two Corps formed Side by Side.] Second Corps. ^ First Corps. | ----- ----- | ----- ----- 1st Division. | 1st Division. | ----- ----- | ----- ----- 2d Division. | 2d Division. [Illustration: Fig. 19. Two Corps of 2 Divisions of 3 Brigades each.] First Corps. ----- ----- ----- ^ ----- ----- ----- 2d Division. | 1st Division. Second Corps. ----- ----- ----- ^ ----- ----- ----- 2d Division. | 1st Division. [Illustration: Fig. 20. Two Corps Side by Side.] Second Corps. ^ First Corps. | ----- ----- ----- | ----- ----- ----- 1st Division. | 1st Division. | ----- ----- ----- | ----- ----- ----- 2d Division. | 2d Division. [Illustration: Fig. 21. 2 Corps of 2 Divisions of 3 Brigades each.] First Corps. 2d Division. 1st Division. ----- ----- ----- ----- ----- ----- Second Corps. 2d Division. 1st Division. ----- ----- ----- ----- ----- ----- [Illustration: Fig. 22. 2 Corps of 2 Divisions of 3 Brigades each, placed Side by Side.] Second Corps. ^ First Corps. | 1st Division. | 1st Division. ----- ----- | ----- ----- ----- | ----- | 2d Division. | 2d Division. ----- ----- | ----- ----- ----- | ----- _Formation of Two Corps of Three Divisions of Two Brigades each._ [Illustration: Fig. 23.] First Corps. ---- ---- ^ ---- ---- ^ ---- ---- 3d Division. | 2d Division. | 1st Division. Second Corps. ---- ---- ^ ---- ---- ^ ---- ---- 3d Division. | 2d Division. | 1st Division. [Illustration: Fig. 24.]