House of Lords Library

Our work

Research

Browse by topic, from Brexit and the EU to world affairs. We produce in-depth analysis on legislation, debates and topical issues.
Collections

Access our print and online collections, including books, journals and newspapers. Available with a parliamentary login.
Data dashboards

Explore interactive data visualisations about the House of Lords. Includes data on current membership and regional representation.

Read the most recent research on legislation, debates and topical issues

UK-Poland defence and security treaty

The UK and Poland have signed a new treaty on defence and security which provides a framework for cooperation across a range of policy areas, including foreign policy and defence innovation, economic resilience, and energy and climate security. It is not yet in force; the process of its ratification is ongoing. The treaty comes at a time of rising geopolitical tensions, particularly over the war in Ukraine and Russian activity on NATO’s eastern flank.
- Foreign Policy
UK-EU competition cooperation agreement

The UK-EU competition cooperation agreement would establish a formal framework for the UK’s Competition and Markets Authority and EU competition authorities to work together to enforce their respective competition laws. This would include duties for authorities to consider the interests of other parties when enforcing competition law and safeguards regarding the sharing and use of information. The agreement was signed in February 2026 but it is not in force at the time of writing.
House of Lords data dashboard: Current membership of the House

This page provides interactive data on the current membership of the House of Lords.
- House of Lords