Imam Saud bin Abdulaziz bin Muhammad wrote to Rahma bin Jaber Al-Jalhami in Qatar, ordering him to prepare for the invasion of Bahrain, which had previously gone out of obedience to the Saudi state. Imam Saud bin Abdul Aziz sent an army to him from Najd, Al-Ahsa and Qatif and their ships reaching 60 . When Abdullah bin Ahmed Al Khalifa , the ruler of Bahrain learned about the upcoming attack, he sent to the ruler of Kuwait, Sheikh Jaber bin Abdullah Al-Sabah, to seek his support, so he brought him by sea with ships, so all their ships reached 200 ships.