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.

Germany has delivered a new batch of military assistance to Ukraine, which includes artillery shells, Leopard 1 AP tanks, machine guns, drones, rifles and ammunition.

The European Union expects Russia to explain the removal of buoys on the Estonian-Russian border on the Narva River and demands that they be immediately returned to their place.

Hungarian Prime Minister Viktor Orbán has said that Hungary is working to "redefine" its NATO membership status to allow it to opt out of NATO’s deepening support for Ukraine.

Russian leader Vladimir Putin is still not ready for peace in the third year of Russia's war against Ukraine, French President Emmanuel Macron believes. 

Małgorzata Kidawa-Błońska, Marshal (Speaker) of the Polish Senate, arrived in Ukraine on a visit on the morning of 24 May.

Moldovan Foreign Minister Mihail Popșoi has said that Russia is using his country to test its new influence and interference technologies, intending to apply them elsewhere afterwards.

Following the Russian bombings on Kharkiv and Liubotyn in Kharkiv Oblast, which resulted in casualties and destruction, Ukrainian Foreign Minister Dmytro Kuleba stressed the necessity of additional Patriot air defence missiles.

Nataliia Halibarenko, the head of the Ukrainian mission to NATO, believes that sooner or later, a decision on the right of Ukrainian troops to use US weapons to strike targets in Russia will be made.

Nataliia Halibarenko, Ukraine's Ambassador to NATO, has noted "some progress" in discussions on supplying the country's military with additional Patriot air defence systems.

In the face of Russian aggression against Ukraine, 87% of EU residents support providing humanitarian aid to Ukrainians impacted by the war, and 83% support admitting those fleeing the conflict to the EU, a Eurobarometer survey suggests.

The Polish Ministry of Foreign Affairs has stated that Ukraine's request to shoot down Russian missiles from NATO territory is a matter for discussion.

UK Defence Secretary Grant Shapps on Wednesday accused China of providing or preparing to provide lethal weaponry to Russia for use in the war against Ukraine.