Adam Clarke on Habakkuk 3:14

Thou didst strike through - The Hebrew will bear this sense: "Thou hast pierced amidst their tribes the head of their troops," referring to Pharaoh and his generals, who came like a whirlwind to fall upon the poor Israelites, when they appeared to be hemmed in by sea, and no place for their escape. If we follow the common reading, it seems to intimate that the troops of Pharaoh, in their confusion (for God shone out upon them from the cloud) fell foul of each other; and with their staves, or weapons, slew one another: but the head of the villages or towns, i.e., Pharaoh was drowned with his army in the Red Sea.