Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph.
A. Much of this war had taken place along the Western Front.
B. Both sides had dug in deep and each lost many men over little ground.
C. This front was a line of trenches across which the two sides faced each other.
D. Andre Maginot had fought a war with the French against the Germans.