Complex sentence: At the height of the fighting Lieutenant Dytor and his troop were pinned down by enemy fire and in an act of inspiring leadership, he encouraged his troop forward and personally led the assault on a strong enemy machine gun position.
Split into simpler sentences: At the height of the fighting Lieutenant Dytor and his troop came under a hail of enemy fire. In an act of inspiring leadership, he fought his troop forward and personally led the assault on a strong enemy machine gun position.