Exclusives

Ukraine’s jets adopt Western tactics, learn to hunt in packs. More Ukrainian air force pilots are flying and fighting in complex teams.

Bedtime stories and ballistics: How Ukraine’s children are growing up fast. Ukrainian psychologist Oksana Pisareva says kids in therapy talk about missiles, not monsters.

“They trample corpses”: Ukraine’s Muslim leader-turned-medic exposes what Russians really fight for. As Russian soldiers crawl over their own dead, Ukraine’s ex-mufti saves the lives they claim — revealing what really drives the world’s second army to raze peaceful cities.

Military

Russia captures Sumy’s Kostiantynivka village as Russians try to widen frontline in region. ISW and DeepState report mounting pressure as Moscow’s troops seize new ground in Sumy Oblast.

This is how Ukrainian drones destroy Russian bombers that attack Ukraine in surprise Spiderweb operation

Ukraine’s Security Service (SBU) revealed that when communication was severed, the drones continued missions using pre-programmed routes and AI algorithms before automatically activating warheads at designated targets.

Drone hits house in Russian Kursk oblast, woman injured. Russian air defense systems intercepted seven Ukrainian drones across three regions overnight, with two shot down over Kursk region, the Defense Ministry claimed.

Russian missile hits Ukrainian training ground in Poltava, servicemen wounded. A Russian missile attack on a Ukrainian military training facility in Poltava Oblast on 4 June left servicemen wounded, marking the second such strike on Ground Forces training units within four days.

As of 4 JUN 2025, the approximate losses of weapons and military equipment of the Russian Armed Forces from the beginning of the invasion to the present day:

• • • Personnel: 991820 (+1020)
    • Tanks: 10884 (+3)
    • APV: 22678 (+7)
    • Artillery systems: 28711 (+88)
    • MLRS: 1402
    • Anti-aircraft systems: 1176
    • Aircraft: 413
    • Helicopters: 336
    • UAV: 38924 (+176)
    • Cruise missiles : 3271
    • Warships/boats: 28
    • Submarines: 1
    • Vehicles and fuel tanks: 50730 (+123)

Intelligence and technology

Russia ramps up Shahed production to 170 daily, eyes 190 by year-end. Russian engineers have doubled the explosive payload in Shahed drones from 50 to 90 kilograms while introducing new warhead types targeting specific objectives, according to Ukraine’s intelligence services.

UK drone deliveries to Ukraine jump from 10,000 to 100,000 in 2025. The UK government will invest a record $474 mn in drone production for Ukraine this year, scaling up from the 10,000 drones delivered in 2024 to an ambitious target of 100,000 units, the Defence Ministry announced.

International

Netherlands announces new maritime security support package for Ukraine worth $456 million. The package will consist of over 100 naval vessels, including ships, patrol boats, transport boats, interceptors, special operations vessels, and 50 maritime drones, according to Defense Minister Ruben Brekelmans

Putin tells Trump in phone call he will retaliate recent Spiderweb drone operation on Russian airfields. Trump also emphasized that this was not a conversation that “will lead to immediate peace.”

US senator compares Ukrainian Spiderweb drone operation to anti-terror bin Laden killing. Richard Blumenthal believes that the recent Ukrainian surprise drone attack that hit 41 Russian aircraft could “shift momentum in Washington in favor of increasing aid for Ukraine.”

Trump envoy warns Ukrainian strikes on Russian bombers push conflict toward dangerous escalation. Trump’s special envoy for Ukraine warned that recent Ukrainian drone strikes on Russian strategic bomber bases might push the war toward dangerous escalation

Ukraine’s diplomat slams UN for passing World’s Horse Day resolution while ignoring more pressing global issues. Serhii Kyslytsia contrasted this decision with years of resistance Ukraine faced in the UN when trying to establish a day against disinformation while fighting Russia, who remains a UN member.

US Defense Secretary skips Ukraine meeting for first time since creating it. Defense Secretary Pete Hegseth will miss Wednesday’s gathering of 50 defense ministers coordinating military aid for Ukraine. The absence marks the first time since 2022 that America’s top defense official has skipped the meeting the US originally created.

Frontline report: Putin knew Serbia’s weapons were in Ukraine — now he’s making it personal. Serbian ammo has been showing up in Ukraine for years. Only now, with a factory in flames, is Putin pretending to be shocked.

Humanitarian and social impact

Ukraine and Russia to exchange prisoners of war this weekend — only result of Istanbul peace talks. The exchange is expected to involve 1,200 prisoners from each side.

95 Russian drones target Ukraine overnight: Kharkiv hit for 90 minutes straight. Russian forces pummeled Kharkiv with drones and missiles for 90 consecutive minutes overnight, leaving one man hospitalized and seven buildings damaged across Ukraine’s second-largest city.

Ukrainian media groups demand True Story Festival drop Russian speakers, add Ukrainian journalists. Ukrainian media organizations demanded True Story Festival organizers remove Russian speakers from the June event in Bern, citing five Russian representatives scheduled for war-related sessions while no Ukrainian journalists appear on the programme.

Other developments

ISW: Russia continues to want Ukraine’s “complete destruction.” Russian missile stockpile only grows. Russian Security Council Deputy Chairperson Dmitry Medvedev stated that Moscow’s peace negotiations in Istanbul must result in the Ukrainian government’s elimination rather than compromise.

Read our earlier daily review here

Ukrainian Defense Minister Rustem Umerov announced that Russia has completed drafting a memorandum outlining steps toward a ceasefire but continues to delay its delivery.

Russians bullied and threatened Ukraine in Istanbul — but Putin banned his men from one move

According to Umerov’s post on Facebook, the Russian side initially attempted to postpone the memorandum process entirely. However, pressure from President Trump, European leaders, and President Zelenskyy demonstrated unified international support for peace in Ukraine, prompting Russia to complete the document. Despite finishing the draft, Russia has not yet delivered the memorandum to Ukrainian officials.

Umerov confirmed that Ukraine has already provided its position document to the head of the Russian delegation.

“We reaffirm Ukraine’s readiness for a full and unconditional ceasefire and continued diplomatic engagement,” he stated.

“We are not opposed to further meetings with the Russians and are awaiting their ‘memorandum,’ so that the meeting won’t be empty and can truly move us closer to ending the war,” Umerov added.

Ukrainian Foreign Minister Andrii Sybiha echoed these concerns, calling on Russia to immediately deliver its memorandum rather than waiting until Monday.

“We expect that the Russian side will not disrupt the next meeting and will immediately submit their proposals for our consideration, as was agreed earlier,” Sybiha stated.

President Volodymyr Zelenskyy revealed that Umerov had contacted Russian negotiator Vladimir Medinsky to inquire about the memorandum’s delivery timeline.

“They assured us: ‘It will come, it will come.’ But we never received anything. No one did. We reached out to the USA — they are also waiting. Everyone is waiting,” Zelenskyy said.

Medinsky disputed this account, claiming he had initiated the conversation and proposed a specific date and location for exchanging memorandums.

Russian Foreign Minister Sergey Lavrov subsequently announced that Russia proposes holding a second round of negotiations on 2 June in Istanbul, where the Russian delegation would present its ceasefire conditions.

Umerov emphasized that Russia has four days remaining before their delegation’s departure to provide the document for review, warning against attempts to make meetings destructive rather than productive.

Earlier, three Russian sources with knowledge of negotiations shared with Reuters what the Kremlin demands from Ukraine to end the war. President Putin had set forth specific conditions, including:

• written guarantees from Western leaders to halt “NATO’s eastward expansion”, effectively excluding Ukraine, Georgia, and other former Soviet states from membership
• Ukraine adopting a neutral status
• partial lifting of Western sanctions
• resolution of frozen Russian assets abroad
• protections for Russian speakers in Ukraine.

Ukraine rejects any veto over its NATO aspirations and insists on strong Western security guarantees, with President Zelenskyy emphasizing that no agreements about Ukraine’s future will be accepted without its direct involvement. 

US President Donald Trump revealed during a recent press conference that he cannot determine whether Russian President Vladimir Putin genuinely seeks to conclude the war in Ukraine.

Trump also indicated his willingness to participate in potential discussions between Ukrainian President Volodymyr Zelenskyy and Putin if required. 

“Within two weeks we are going to find out very soon if he [Putin] is tapping us along or not. If he is, we will respond a little bit differently,” Trump stated. 

The American president cited recent Russia’s violence as grounds for his skepticism, stating he feels “very disappointed by what has been happening these past few nights, when people are being killed in the middle of what you would call negotiations.”

The American leader criticized ongoing Russian attacks on Ukrainian cities, stating that missile strikes against urban areas are unacceptable. Trump questioned Putin’s motivations, saying he doesn’t understand what has changed about the Russian leader, given that “he’s killing a lot of people.”

Following a deadly Russian missile and drone attack on Ukraine that killed at least 12 civilians on 25 May, Trump publicly condemned Putin, calling him “crazy” and expressing consideration of new sanctions against Russia.

However, Trump also criticized Ukrainian President Volodymyr Zelenskyy, accusing him of causing problems with his rhetoric, and blamed both Zelenskyy and President Joe Biden for the continuation of the war, which he claimed would not have started under his leadership.

The Trump’s team also issued an ultimatum that the US will withdraw from negotiations if Russia and Ukraine do not enter direct peace negotiations soon.