original passage: Ealdred was an advisor to King Edward the Confessor, and was often involved in the royal government. He was also a military leader, and in 1046 he led an unsuccessful expedition against the Welsh. This was in retaliation for a raid led by the Welsh rulers Gruffydd ap Rhydderch, Rhys ap Rhydderch, and Gruffydd ap Llywelyn. Ealdred's expedition was betrayed by some Welsh soldiers who were serving with the English, and Ealdred was defeated.
original sentence: He was also a military leader, and in 1046 he led an unsuccessful expedition against the Welsh.
sentence2: From the way that the passage describes the expedition, would you say that the mutiny of the Welsh soldiers was a key factor in the outcome?
sentence1: Ealdred was an advisor to King Edward the Confessor, and was often involved in the royal government. He was also a military leader, and in 1046 he led an unsuccessful expedition against the Welsh. This was in retaliation for a raid led by the Welsh rulers Gruffydd ap Rhydderch, Rhys ap Rhydderch, and Gruffydd ap Llywelyn. Ealdred's expedition was betrayed by some Welsh soldiers who were serving with the English, and Ealdred was defeated.