https://edition.cnn.com/2019/02/01/politics/nuclear-treaty-trump/index.html

https://qz.com/1273510/all-the-international-agreements-the-us-has-broken-before-the-iran-deal/

China does not sit idly by but rewrites the rules to suit the whole world:

https://www.scmp.com/comment/opinion/article/3092490/china-rewriting-rules-its-own-ends-world-cannot-sit-idly