Background: Ukraine has warned that Russia is increasingly integrating Belarus into its war effort by using its territory for drone operations and expanding military infrastructure near the border. Today, Frantsishak Viachorka, adviser to Belarusian opposition leader Sviatlana Tsikhanouskaya, stated that Russia and the Lukashenko regime are actively rebuilding Soviet-era infrastructure, constructing military bases, and deploying Oreshnik missiles and nuclear weapons along Belarus's borders with Ukraine, Poland, and Lithuania. He assessed no immediate invasion but noted ongoing drone and helicopter provocations to test NATO defenses.

On the night of 30-31 May, Russian forces launched 229 drones across Ukraine, of which 212 were intercepted. A strike in Koriukivka district, Chernihiv region, killed a 58-year-old man and destroyed seven cargo trucks. In Sloviansk, Donetsk Oblast, six strikes using FPV drones and UAVs damaged a gas station, five private houses, and a Nova Poshta branch, injuring a seven-year-old boy and his mother. In Dnipro, a drone destroyed Nova Poshta's main branch No. 1, though no employees were injured. The attacks are part of a sustained campaign targeting civilian infrastructure, including a double-tap strike in Zaporizhzhia the previous day that killed a first responder.

On the night of May 30-31, 2026, Russia launched 229 drones (Shahed, Gerbera, Italmas, Parodiya decoys) from Oryol, Kursk, Bryansk, Millerovo, Shatalovo, Primorsko-Akhtarsk, and occupied Hvardiiske in Crimea. Ukrainian air defenses, including aviation, anti-aircraft missile units, electronic warfare, unmanned systems units, and mobile fire groups, shot down or suppressed 212 drones over eastern and northern Ukraine. Fourteen drones struck 11 locations, and debris fell at five additional sites. The attack remained ongoing with several drones still in Ukrainian airspace.

Background: Russia claimed capture of Ryasne and Zapsillia in Sumy region on May 26, 2026, which Ukraine denied. On May 26, 2026, the Armed Forces of Ukraine officially denied Russian propaganda claims that the border settlement of Riasne in Sumy region had been captured. According to the 14th Army Corps of the Armed Forces of Ukraine, units of the 119th Territorial Defense Brigade and other Defense Forces maintain full control of the settlement. The statement reported that enemy assault groups were being systematically destroyed by Ukrainian FPV drones, and that the occupiers suffered defeat on the approaches to Riasne.

On May 31, Russian forces launched coordinated attacks on Ukraine's Kherson and Kharkiv regions, injuring at least 20 civilians. In Kherson, MLRS and FPV drone strikes wounded eight people, including five civilians in Komyshany and three police officers. In Kharkiv, drone and artillery attacks across 15 settlements injured 11 civilians, with damage to infrastructure and civilian property. Ukrainian authorities have opened war crimes investigations into the attacks.

Background: On May 29, Russian airstrikes damaged 16 houses in Malotaranivka and injured one person, while separate attacks killed one civilian in Druzhkivka and wounded six others across the Donetsk region. On May 30, Russian attacks killed two civilians in Lozove and Myrove and injured four others across the Donetsk region. The cumulative civilian toll since the full-scale invasion now stands at 4,091 killed and 9,532 injured, excluding occupied Mariupol and Volnovakha.

Russia has launched the first 16 satellites of its Rassvet (Dawn) constellation, a domestic low-Earth-orbit satellite internet system developed by Bureau 1440 as an alternative to SpaceX's Starlink. Ukrainian Defense Ministry adviser Serhii Beskrestnov assessed the program, stating that at least 200–250 satellites are needed for continuous coverage, with plans for 300 in the coming years and eventual expansion to 1,000. He noted that each satellite currently passes over Ukraine once daily for 6–10 minutes, making military use unlikely until the constellation is denser. The launch follows SpaceX's shutdown of Starlink terminals used illegally by Russian forces in January 2026, which disrupted Russian frontline communications.

A Russian military attack in Dnipro completely destroyed a Nova Poshta logistics branch. No employees were injured. The company activated backup systems, reorganized logistics, and will compensate customers for destroyed shipments. Emergency responders and police are at the scene assessing damage.

On 30 May 2026, a Russian drone dropped an incendiary munition on the Church of the Nativity of the Blessed Virgin Mary in Zakitne, Donetsk Oblast, destroying the wooden structure on the eve of Trinity Sunday. The 81st Separate Airmobile Brigade reported the attack, noting that the same type of weapon is used against dugouts and wooden buildings. The church, built in 2009–2010 and consecrated in July 2010, had been used by the brigade's chaplain, Father Yaroslav, before the village became a frontline area. This is the second destruction of a church in Zakitne; the original was destroyed during the Soviet anti-religious campaign of the 1930s. The attack violated Article 53 of Additional Protocol I to the Geneva Conventions protecting places of worship, highlighting ongoing Russian targeting of religious sites in Ukraine.

Russian forces conducted nearly 70 strikes on 36 settlements in Ukraine's Sumy region over the past day, injuring two civilians. The attacks used mortars, artillery, MLRS, drones, and guided bombs, damaging residential and civilian infrastructure. A 58-year-old man was injured in Krasnopillia community after a drone struck a vehicle, and a 78-year-old man was wounded in Shostka community. Damage included destroyed private houses, administrative buildings, vehicles, and a medical facility.

Russian forces struck Dnipro on 31 May, causing a fire at a logistics company warehouse and igniting nearby vehicles. Casualty information is being confirmed. The attack was part of a larger wave of 229 loitering munitions launched against Ukraine, with Ukrainian air defenses neutralizing most of them. Updated reports indicate that Ukrainian air defenses downed or jammed 212 of the 229 loitering munitions.

Ukraine's 42nd Separate Mechanized Brigade deployed a Liut unmanned ground vehicle (UGV) armed with a Belgian FN MAG machine gun to suppress a Russian infantry assault on the Novopavlivka axis. The UGV company primarily conducts logistics missions, delivering supplies to forward positions where drone density makes manned supply runs suicidal. The unit is also developing kamikaze and evacuation UGVs.

On 31 May, Russian forces conducted aerial attacks using drones and ballistic missiles, striking a disused industrial facility in Rivne Oblast and the city of Dnipro. Fires erupted at both locations; no casualties were reported in Rivne, while casualty information for Dnipro is being confirmed. The strikes underscore the ongoing Russian campaign against Ukrainian infrastructure.

Russian forces have repeatedly targeted the Zhytomyr region, including a drone attack on the Korosten community on May 26 that damaged infrastructure and injured one person. In a subsequent development, Russian strikes hit critical infrastructure and industrial facilities in the Korosten district, sparking fires that were extinguished by emergency services. No casualties were reported, but follow-up strike risks complicated response efforts.

On the night of May 30-31, 2026, a Russian FPV drone attacked a police patrol vehicle in Kherson, injuring three officers with concussions and other injuries. The officers are receiving medical treatment and are not in life-threatening condition. The attack highlights the ongoing threat to emergency responders in frontline areas.

Russia had previously deployed Pantsir-SMD-E air defense systems on Moscow rooftops and over 100 systems around the capital. Now, Russia is constructing a third outer ring of surface-to-air missile systems around Moscow, complementing two existing inner rings of specialized anti-drone towers. A fourth Pantsir-SMD-E unit has been installed on the Nordstar Tower business center via Mi-26 helicopter, following earlier installations on the Russian Defense Ministry headquarters (2023), a commercial office building southeast of the Kremlin (2023), and the Main Directorate of the Ministry of Internal Affairs (2023). Analysts condemn the militarization of civilian buildings as a violation of international humanitarian law, turning them into military targets and endangering nearby residents. The Nordstar Tower sits adjacent to residential high-rises and a school, raising risks of collateral damage from falling debris, booster stages, and interception failures. The escalation follows recent Ukrainian drone strikes on Moscow-area infrastructure, including a May 17 strike that shut down an oil refinery in the Moscow region and a May 4 strike on a residential high-rise in western Moscow.

A Kantar Emor poll commissioned by Estonia's Ministry of Defense in March 2026 found that 67% of Estonian residents support continued aid to Ukraine, unchanged from 2025. Support is higher among ethnic Estonians (80%) than other nationalities (41%). Over two-thirds favor maintaining or increasing defense spending, 71% believe NATO membership deters conflict, and 81% say Estonia should resist an aggressor under any circumstances. The survey of 1,372 residents aged 15–74 highlights strong public backing for Ukraine and national defense.

Russian forces struck a non-operational enterprise in Ukraine's Rivne region, as reported by the head of the Rivne Regional Military Administration on Telegram. No injuries were reported, and emergency services are responding at the scene. The attack is part of a broader pattern of Russian strikes on industrial and critical infrastructure in Ukraine.

Rinat Akhmetov, Ukraine's wealthiest businessman, revealed in an interview with The Guardian that he maintained constant contact with Azov Brigade commander Denys Prokopenko during the 2022 siege of Mariupol. Akhmetov described the defenders' courage and his subsequent Heart of Azovstal project to support them and their families. The interview confirms Akhmetov's presence in Ukraine and underscores the enduring legacy of the battle.