World affairs by topic
World affairs includes the following topic areas. Please click the links to access lists of publications by topic:
War in Ukraine
Find a selection of Lords Library research and resources relevant to Russia's ongoing invasion of Ukraine.
Defence
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Armed forces: UK future capability and requirements
This briefing examines the increasingly volatile international security environment and the UK government’s defence strategy and investment commitments to make the armed forces “fit for war in the 21st century”.
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Proposed legislation on defence readiness and national resilience
The 2025 strategic defence review recommended the government bring forward a defence readiness bill to provide for powers to mobilise reserves and industry should crisis escalate into conflict. Amid criticism that such a measure was not included in the May 2026 King’s Speech, the government has indicated it will introduce a bill later in the current parliament. There have been calls for the bill to cover national resilience matters more broadly when it is introduced.
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Armed Forces Bill: HL Bill 36 of 2026–27
The primary purpose of the Armed Forces Bill is to renew the Armed Forces Act 2006, continuing in force the main legislation governing the armed forces for a further five years. However, the government has stated the bill also provides an opportunity to renew the nation’s contract with the armed forces, strengthen national security, improve conditions of service, and introduce a package of measures relating to the service justice system.
International law
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Genocide Determination Bill [HL]: HL Bill 13 of 2026–27
The bill would enable the High Court in England and Wales, the Court of Session in Scotland and the High Court in Northern Ireland, to make preliminary determinations on whether a genocide is occurring overseas, or if there is deemed to be a serious risk of one occurring. The bill would require the government to refer the preliminary determination to international bodies such as the International Court of Justice.
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Convention establishing an international claims commission for Ukraine
The UK is a signatory to the convention establishing an international claims commission for Ukraine. The commission would assess claims for compensation for damage and losses caused by Russia’s full-scale invasion of Ukraine in 2022. The House of Lords International Agreements Committee has broadly welcomed the convention, but also raised concerns about the scope and efficacy of the commission.
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Protecting populations from atrocity crimes
The UK is required to contribute towards the prevention of atrocity crimes globally. Successive UK governments have used various mechanisms aimed at preventing mass atrocities. Nevertheless, concerns have been raised in recent years regarding the continued occurrence of large-scale violence worldwide. This has prompted some parliamentarians and external stakeholders to call on the government to do more to prevent such atrocities.
Foreign policy
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Genocide Determination Bill [HL]: HL Bill 13 of 2026–27
The bill would enable the High Court in England and Wales, the Court of Session in Scotland and the High Court in Northern Ireland, to make preliminary determinations on whether a genocide is occurring overseas, or if there is deemed to be a serious risk of one occurring. The bill would require the government to refer the preliminary determination to international bodies such as the International Court of Justice.
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Ukraine’s decentralisation reforms
Even as the war in the country continues, Ukraine has implemented significant reform and decentralisation of its public sector in an attempt to improve effectiveness as well as local and regional participation, accountability, and growth. Observers suggest Ukraine has made notable progress in these areas, but considerable obstacles remain. Addressing these challenges could, they argue, be key to Ukraine’s resilience and post-war recovery.
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Impact of cuts to official development assistance on women and girls
The UK has reduced official development assistance (ODA) from 0.7% of gross national income in 2020 to a planned 0.3% by 2027. This briefing examines the government's approach to supporting women and girls within a reduced aid budget, recent changes to ODA allocations, and assessments of the implications for women and girls.
