Skip to content
Colleagues sitting at a table with laptops
Colleagues sitting at a table with laptops

Public International Law

Allen & Overy advises national and international corporations, financial institutions, international organisations, governments and States on all contentious and non-contentious aspects of public international law. Our market-leading practice includes specialists in environmental law, regulatory compliance and risk management, dispute resolution, anti-bribery and corruption, anti-money laundering, public law, human rights and sanctions.

A&O’s public international law advisory work includes:

  • The drafting and interpretation of international treaties and conventions
  • Maritime, territorial and boundary rights
  • State succession
  • International sanctions regimes
  • Privileges and immunities of States and international organisations
  • Recognition of States and State succession
  • Title to natural resources and international environmental law
  • Use of force and international humanitarian law
  • Space law
  • Trade law

We also advise on contentious Public International Law matters, including State-to-State disputes under public international law, including boundary disputes, and have a market-leading investment treaty arbitration practice. 

Our experts have acted as counsel before international courts and special tribunals, such as the Iran-US Claims Tribunal, and advised states on out-of-court strategies for dispute resolution, including before UN fora. We are also one of only a handful of law firms with experience of contentious World Trade Organisation proceedings.

News and insights

Aerial view of complex road infrastructure

Publications: 22 July 2022

UK and EU sanctions enforcement – increasing focus

In the past weeks, the UK and EU regulatory authorities have made a series of announcements in relation to the enforcement of sanctions.

Read more

Publications: 11 July 2022

The United States Supreme Court holds that 28 U.S.C. § 1782 does not encompass arbitral tribunals

On June 13, 2022, the Supreme Court issued its opinion in ZF Automotive US, Inc., et al., v. Luxshare, Ltd.

Read more
Red pointed edge of a high rise building

Publications: 25 February 2022

EU and UK sanctions in response to Russia’s actions in Ukraine

In response to the Russian Federation’s formal recognition of two regions in Eastern Ukraine – Donetsk and Luhansk – as independent states, earlier this week the EU and the UK adopted an initial…

Read more
Red and grey staircase

Publications: 21 February 2022

Webinar: International sanctions update 2022

Sanctions developments are grabbing headlines around the globe with the spotlight recently focused on Russia and Ukraine and the media dubbing the USA’s potential response “the mother of all…

Read more

Awards and achievements

  1. Tier One, Public International Law, Legal 500 UK 2022
  2. Band 1, Dispute Resolution, Global: Multi-Jurisdictional,, Chambers Global 2022
  3. International Arbitration Firm of the Year, Benchmark Litigation Asia-Pacific Awards 2020
  4. Leading firm (top tier) ranking in the “Leaders League” table for International Arbitration (Spain) 2022
 

Recognition

Related content

Aerial view of people sitting at desk

International Arbitration Review

Recent developments and emerging trends in international arbitration law and policy