Though viewed as a military liability by the US, the ROC viewed its remaining islands in Fujian as vital for any future campaign to defeat the PRC and retake mainland China. On 3 September 1954, the First Taiwan Strait Crisis began when the PLA started shelling Kinmen and threatened to take the Dachen Islands in Zhejiang. On 20 January 1955, the PLA took nearby Yijiangshan Island, with the entire ROC garrison of 720 troops killed or wounded defending the island. On 24 January of the same year, the United States Congress passed the Formosa Resolution authorizing the President to defend the ROC's offshore islands. The First Taiwan Straits crisis ended in March 1955 when the PLA ceased its bombardment. The crisis was brought to a close during the Bandung conference.