Weekly Brief

On 2 June, Russia launched 656 drones and 73 missiles — the largest combined aerial assault of the war — killing 22 civilians (including children) and injuring 130+ across eight oblasts. ISW assessed Russia's mass strike was deliberately timed to exploit Ukraine's Patriot interceptor shortage. Ukraine intercepted the vast majority of cruise missiles and drones but only 27% of ballistic missiles. Ukraine struck back: on 3 June Ukrainian forces hit the St. Petersburg oil terminal and the Corvette Boyki in Kronstadt dry dock hours before Putin opened the St. Petersburg International Economic Forum, with smoke visible to arriving guests. On 6 June, a second "unprecedented" wave struck the Kronstadt naval arsenal, the Petergofskaya oil depot, the Neste terminal in Lomonosov, a logistics centre in Bolshaya Izhora, and oil infrastructure in Krasnodar Krai; 144 drones were intercepted.iswabcnews

Ukraine's Security Service (SBU) disrupted a Russian GRU ground-based laser-designation network in Kyiv Oblast tasked with cuing ballistic missiles for the 2 June mass assault. Ukrainian ISR confirmed the Corvette Boyki's position in Kronstadt dry dock prior to the 3 June strike, enabling a 24-hour sensor-to-shooter cycle. ISW confirmed Ukraine struck Russian oil infrastructure in Krasnodar Krai and military assets in Russian border regions on 6 June, demonstrating persistent long-range ISR coverage. Russian troops in the Mariupol–Berdyansk corridor are now disguising military vehicles as civilian transport (changing awning colours, repainting trucks white) to evade Ukrainian drone targeting.reuterscharter97

Ukraine's 3 June St. Petersburg strike — timed to coincide with Putin opening Russia's premier investment forum before 4,000 foreign guests — was designed to undercut his "business as usual" narrative. Striking Putin's home city during a flagship investment forum hosting 4,000 foreign dignitaries served as a stark visual refutation of Russian stability. President Zelenskyy reinforced this kinetic disruption by publishing an open letter that structurally reframed the conflict not as a geopolitical necessity, but as Putin's personal governance failure, aiming to fracture international tolerance for the war.iswwashingtontimes

The joint US–Israel–Lebanon statement of 3 June announced a conditional ceasefire contingent on Hezbollah completely halting fire, withdrawing south of the Litani, and the establishment of LAF-exclusive pilot zones. Hezbollah leader Naim Qassem publicly rejected the agreement the same day, calling it "a roadmap for the annihilation of a section of the Lebanese people". Both sides agreed the next talks will take place in Washington the week of 22 June. Iran explicitly linked Lebanon's ceasefire to any comprehensive US–Iran MOU — requiring it to be addressed in the same agreement, structurally coupling the two theatres.reuters

Hezbollah has been using FPV drones equipped with thermal cameras to conduct night time attacks targeting Israeli forces in southern Lebanon — adopted since at least 23 May to counter IDF night-movement adaptation. IDF shifted some ground forces to operate at night to avoid standard FPV drone reconnaissance, and Hezbollah adapted by adding thermal cameras, restoring night time ISR advantage.isw

Against the backdrop of expanding military boundaries, international mediators launched a major push to rescue the failing political process. A high-level summit convened in Cairo from 6–7 June featuring mediators from Egypt, Qatar, and Turkey, alongside representatives from various Palestinian factions, concluded in a "positive atmosphere" with Hamas engaging on Phase 2 disarmament and international stabilisation force proposals — representing the most substantive Gaza diplomatic engagement since 31 May. However, IDF simultaneous expansion from 53% to 64% control, with direction to reach 70%, creates ground facts that narrow Hamas's leverage with each session.anadoluwafa

Iran fired multiple waves of missiles at northern Israel on 7 June — the first direct Iranian missile attack since the April 8 ceasefire — citing Israel's Dahieh strikes in Beirut. Israel struck Iran on 8 June with air-launched ballistic missiles; explosions reported in four cities. Saudi Arabia activated missile alert sirens in Al Kharj governorate (home to Prince Sultan Air Base hosting US forces) — the threat subsided. Simultaneously, a Houthi ballistic missile was launched toward Israel from Yemen — the first Houthi launch of the current war cycle — and the Houthis declared a complete and total ban on Israeli shipping in the Red Sea. Kuwait and Bahrain were struck by Iranian ballistic missiles on 3 June following US strikes on Iranian radar installations. Trump's explicit request to Netanyahu not to retaliate — publicly defied — confirms that US C2 over Israeli operations is now visibly broken. The MOU negotiating track is suspended; the back-channel (Pakistan) is the only functioning communications link remaining.nprcnnguardian

On 6 June, Thai authorities selectively reopened the ancient Prasat Ta Khwai temple complex and Hill 350 in Surin province for a "border heritage weekend." This highly controlled opening allowed civilian access to the Khmer ruins while masking the ongoing heavy Thai military presence dug in behind the heritage perimeter. By allowing civilians and tourists to photograph themselves at a disputed historical site, Thailand projected a narrative of absolute stability, control, and normalcy to the international community. This public display of calm directly undercut Cambodia's diplomatic efforts at the United Nations: while Cambodia pursued emergency UNCLOS actions to draw international arbitrators into the conflict, Thailand used tourism to show the world that the situation on the ground was "perfectly managed and safe," painting Cambodia's legal manoeuvres as alarmist.khaosod

Behind the thin veil of controlled tourism, the Royal Thai Army successfully maintained and reinforced its heavy defensive footprint at Hill 350 and the temple ruins without drawing regional condemnation. Opposing Cambodian forces cannot easily launch a tactical counter-incursion or fire on Thai positions when the area is actively populated by civilian tourists. The tourism event effectively paralysed any immediate Cambodian military response, forcing Phnom Penh to watch Thailand consolidate its ground positions under the protective cover of a cultural weekend.