Complex sentence: Platoons are commanded by a Second Lieutenant, or Lieutenant with a Staff Sergeant as the Platoons Second-in-Command (2ic) and are further divided into sections under the command of Sergeants.
Split into simpler sentences: Platoons are commanded by a Second Lieutenant, or Lieutenant with a Staff Sergeant as the Platoons Second-in-Command (2ic). They are further divided into sections under the command of Sergeants.