[https://edition.cnn.com/2021/04/13/politics/afghanistan-biden-withdrawal-analysis/index.html](https://edition.cnn.com/2021/04/13/politics/afghanistan-biden-withdrawal-analysis/index.html) >"President Joe Biden's decision to pull US troops out of Afghanistan by September marks a pivotal moment after almost 20 years of war in the country and thousands of lives lost -- it also signals a coming shift in US focus and resources overseas."