Complex sentence: General Marshall accepted the surrender of Khalil Pasha and the Ottoman 6th Army on the same day, but Cobbe did not hold his current position as the armistice required, and continued to advance on Mosul in the face of Turkish protests.
Split into simpler sentences: General Marshall accepted the surrender of Khalil Pasha and the Ottoman 6th Army at the same day. But Cobbe did not hold his current position as the armistice required, and continued to advance on Mosul in the face of Turkish protests.