Complex sentence: In 1757, he commanded at the siege of Prague and later in this same campaign he defended Leipzig against a greatly superior force, was present at Rossbach, and, while the king was fighting the campaign of Leuthen, conducted a foray into Bohemia.
Split into simpler sentences: In 1757, he commanded at the siege of Prague and later in this same campaign he defended Leipzig against a greatly superior force. He was also present at Rossbach, and, while the king was fighting the campaign at Leuthen, conducted a foray into Bohemia.