Complex sentence: A third alternative, which was effective against cavalry attacks, was to line up the whole regiment into one huge battalion in six lines with the first two lines consisting of musketeers the second two lines of pikers and the last two lines of musketeers.
Split into simpler sentences: A third alternative, which was effective against cavalry attacks, was to line up the whole regiment into one huge battalion in six lines. The first two lines consisting of musketeers the second two lines of pikers and the last two lines of musketeers.