4 Shia Muslim activists are arrested in Bahrain.
Australia announces its agreement to join the United States' coalition, along with the United Kingdom and Bahrain, to prevent Iran from targeting ships travelling through the Strait of Hormuz. Australia will deploy a Boeing P-8 Poseidon and a frigate.
The Bahrain High Civil Court in Manama dissolves Al Wefaq, Bahrain's main Shia opposition group, accusing it of helping to foster violence and terrorism in the Sunni-led, Shia-majority island country. The Bahraini court previously issued a three-month suspension of the group last month.