What does the AUKUS security partnership between Australia, the US and UK mean for security in Asia, for the US-China rivalry, and for US-Europe relations?

When is it effective to use economic instruments in international politics?

The nuclear deal with Iran is in crisis, and talks on the North Korean nuclear program has made little progress. At the same time, China is well on its way to become one of the world’s most powerful states. How important is it for China to prevent any further proliferation of nuclear weapons?