Complex sentence: As children, Louis and Carlos began experiencing first-hand the horrors of war, having to dock under classroom desks when government planes and helicopters flew by, shooting down at an advancing coalition of The Guerilla.
Split into simpler sentences: As children, Louis and Carlos began experiencing, at first-hand, the horrors of war. Having to dock under classroom desks when government planes and helicopters flew by, shooting down at the advancing coalition of The Guerilla.