Danish Foreign Minister Lars Løkke Rasmussen has announced that Ukraine will be allowed to use Danish-supplied F-16 fighter jets to strike military targets inside Russia.

Finland has not imposed any restrictions regarding Ukraine's strikes on Russia’s territory with weapons that it handed over to Ukrainian troops. 

Hungary is blocking the approval of a draft negotiation framework on Ukraine's accession to the European Union over the issue of minority rights, as a meeting of EU ambassadors is ongoing on 29 May.

Olha Stefanishyna, Deputy Prime Minister for European and Euroatlantic Integration for Ukraine, has discussed potential decisions of the NATO Summit in Washington, which will guarantee irreversibility of Ukraine’s NATO membership, with Jens Stoltenberg, NATO Secretary General.

Several states have asked Sweden to put on hold the plans to send Gripen fighter jets to Ukraine in order to focus on delivering F-16s.

In response to the decision to enable Ukrainian forces to strike Russia, Josep Borrell, EU High Representative for Foreign Affairs and Security Policy, stated that a balance must be maintained between the risk of escalation and Ukraine's need to protect itself.

President Volodymyr Zelenskyy believes that US President Joe Biden should attend the Peace Summit in Switzerland. 

On 27 May, the Council of the European Union imposed sanctions on two individuals, including Viktor Medvedchuk, a former pro-Russian member of the Ukrainian parliament and close friend of Vladimir Putin, who is the godfather of Medvedchuk’s daughter; and one organisation spreading anti-civil society propaganda in the EU and adjacent countries.

The NATO Parliamentary Assembly has urged the governments of the Alliance’s member states to allow Ukraine to use Western-supplied weapons to strike targets in the Russian Federation.

Ukrainian President Volodymyr Zelenskyy has said that 90 countries have already confirmed their attendance at the Peace Summit in Switzerland in June.

During his visit to Madrid, President Volodymyr Zelenskyy signed a security cooperation agreement between Ukraine and Spain.

Volodymyr Zelenskyy, the President of Ukraine, has stated that a bilateral security pact with Lithuania will be signed soon.

NATO Secretary General Jens Stoltenberg asks that the allies review the constraints on Ukraine's ban on using Western weaponry against the Russian Federation in the midst of border fighting in Kharkiv Oblast.

Volodymyr Zelenskyy, President of Ukraine, arrived in Spain on his first official visit on 27 May.

Ukrainian Foreign Minister Dmytro Kuleba, in his online appeal to the EU Council of Foreign Ministers on Monday, appealed for faster delivery of more air defence systems and asked the diplomats to support Ukraine's attacks on military targets on Russian territory.