In 1632 CE, Al-Mu'ayyad Muhammad sent an expeditionary force of 1000 men to conquer Mecca.[8] The army entered the city in triumph and killed its governor.[8] The Ottomans were not ready to lose Mecca after Yemen, so they sent an army from Egypt to fight the Yemenites.[8] Seeing that the Turkish army was too numerous to overcome, the Yemeni army retreated to a valley outside Mecca.[9] Ottoman troops attacked the Yemenis by hiding at the wells that supplied them with water.