Geopolitical competition in the international system
This article examines challenges to the international system, considering how a more competitive and uncertain world will affect the UK.

Insights on emerging trends in international affairs and national security, developed for Horizon Scan 2024 to support decision-makers in the UK Parliament.
Ten different issues were identified under this topic.
Short articles have been written on these issues to help parliament identify what action it may wish to take. New articles will be added when they become available.
This article examines challenges to the international system, considering how a more competitive and uncertain world will affect the UK.
China is the UK’s fifth-largest trading partner. Recent issues have complicated the relationship with China, but opportunities remain.
With growing cooperation between the UK and EU on various fronts, what new opportunities and challenges lie ahead?
Infrastructure is at risk from a range of threats including climate change and cyber-attacks. What can the UK do to protect infrastructure against these threats?
Climate security refers to the impact of climate change on national security. The UN’s Intergovernmental Panel on Climate Change described the threat posed by climate change to human and national security as a “code red for humanity”.
What emerging trends can we identify in modern warfare, and how will new technologies shape future conflict and the military operating environment?
UK national security risks are growing with the wider use of digital technologies. Could these technologies also strengthen UK national defence?
Countries increasingly prioritise economic security in geopolitics and trade. How can the UK enhance its security while upholding rules-based free trade?
What does the future hold for alliances such as NATO and AUKUS, and how can the UK enhance its reputation and influence in the world?
POST would like to thank consultation respondents and peer reviewers for kindly giving up their time to support this work, including:
*denotes people and organisations who acted as external reviewers of the briefing.