How did Saudi Arabia and the United Arab Emirates assist Bahrain during the 2011 unrest?

During the 2011 Arab Spring protests in Bahrain, Saudi Arabia and the United Arab Emirates provided direct military and security assistance to the Bahraini government to help suppress the uprising.

On March 14, 2011, a Gulf Cooperation Council (GCC) security force—comprising approximately 1,000 soldiers from Saudi Arabia and 500 police officers from the United Arab Emirates—entered Bahrain via the King Fahd Causeway. This deployment, which marked the first significant use of the GCC's Peninsula Shield Force, was officially invited by the Bahraini government to preserve public order and guard infrastructure.12345

Following the arrival of these forces, the Bahraini government declared a state of emergency on March 15, 2011, and intensified its crackdown on protesters. In addition to this security intervention, the United Arab Emirates also provided financial assistance to the Bahraini government during the period of unrest.126