The agreement governing future relations between the UK and the EU has addressed only some of the serious questions about future security cooperation. Many challenges lie ahead, and goodwill, as well as attention to detail will be required by both sides.
A consistent feature of official UK positions after Brexit was enthusiasm for continued UK–Europe cooperation on defence and security matters. However, difficulties in the talks endanger both intergovernmental activities in this domain and the future of UK defence industrial capability.
The Trump administration appears keen to further reduce troop levels in Afghanistan, and for the Afghan government and Taliban to start formal negotiations. However, key security threats to the US and its allies in Afghanistan remain unresolved and a sustainable peace at this juncture is highly unlikely.