Complex sentence: Although the Senate advised against it with one voice, Maurice lent an army of 35,000 men for Khosrau II to regain his throne, and in 591 the combined Roman-Persian army under generals Narses and John Mystacon defeated Bahram Chobin's forces near Ganzak.
Split into simpler sentences: Although the Senate advised against it with one voice, Maurice lent an army of 35,000 men for Khosrau II to regain his throne. The combined Roman and Persian army under generals Narses and John Mystacon defeated Bahram Chobin's forces near Ganzak.