درع الجزيرة
On 14 March, the Gulf Cooperation Council (GCC) agreed to deploy Peninsula Shield Force troops to Bahrain. Saudi Arabia deployed about 1,000 troops with armored support, and the United Arab Emirates deployed about 500 police officers. The forces crossed into Bahrain via the King Fahd Causeway. The purported reason of the intervention was to secure key installations. The opposition reacted strongly, calling it an "occupation".