The European Union is one of the most outward-oriented economies in the world, and free trade is one of its founding principles. As such, instruments intended to ensure that international trade is conducted on a level playing field have been part of the EU's policy toolbox since the beginning of European integration. Adapting to the current changes in international trade, these instruments have since undergone major reforms. This work provides an overview of the EU's legal framework on the use of its trade defence instruments, in particular measures under the Trade Barriers Regulation, the Basic Anti-Dumping Regulation and the Basic-Anti Subsidy Regulation. The book shares valuable insights into how EU institutions currently apply these instruments and places their application in the broader political context in which international trade takes place, which has been shaped e.g. by developments related to the United Kingdom's withdrawal from the EU and the ongoing blockade of the WTO Appellate Body.