The withdrawal of US troops from Afghanistan and the subsequent collapse of the Afghan government threatens the lives, security, and human right of many people. Twitter and other social media platforms took the lead in opinion and sentiment sharing, allowing researchers to make a real-time assessment that may help authorities develop early response strategies. In this study, 362,566 tweets relating to the exit of the US troops from Afghanistan collected between August 11 and 27, 2021, are analyzed using text mining techniques, including sentiment analysis and word cloud analysis. The analysis shows diverse topics on social media related to the fallout, and the general reaction regarding the crisis was negative.