Armed Conflict — 2026-07-04

Russia Loses Ground for Second Straight Month as CSIS Assesses Moscow Has Lost the Military Initiative in Ukraine

BLUFRussia's ground war has crossed an attrition inflection point where localized tactical gains no longer offset cumulative force degradation across the front.

Russian forces netted a loss of roughly 40 square kilometers of Ukrainian territory in June, the second straight monthly net loss, according to analyst Konrad Muzyka of Rochan Consulting 1. Russia advanced about 28-30 square kilometers across the front during the month and took control of neighborhoods inside Kostiantynivka, its largest single gain of the year, but lost more ground elsewhere once Ukrainian counterattacks were subtracted, per ISW and mapper Clément Molin 1. CSIS assessed that Russia has lost the military initiative in Ukraine, citing 1.4 million Russian battlefield casualties and up to 450,000 deaths since February 2022, a monthly casualty rate near 8:1 against Ukraine in the first half of 2026, and Russian rates of advance as low as 50 meters per day around Kostiantynivka 2. CSIS separately reported Russia's territorial control shrank by roughly 400 square kilometers in April and May combined, its first monthly net losses since August 2024 2.

Analysis
Two straight months of net Russian territorial loss, now corroborated by CSIS's independent casualty and advance-rate data pairing primary institutional analysis with secondary reporting, point to structural attrition rather than a monthly blip. Kostiantynivka stands as Russia's costliest gain of the year: a single urban foothold bought at advance rates as low as 50 meters per day while the broader front contracted, against an 8:1 casualty ratio that shows offensive capacity being consumed faster than it regenerates. The net loss may instead reflect deliberate consolidation around newly captured urban terrain rather than an inability to sustain other axes. Sustained erosion would strain Moscow's capacity to mount simultaneous offensives heading into autumn.

2 sources

Russia lost ground for a second straight month in June CSIS says it has lost the initiative too - Euromaidan Press
Russian Blood and Treasure: The Ballooning Costs of Putin's War - Center for Strategic and International Studies (CSIS)