A sudden breakthrough of Ukraine's defensive lines is unlikely, since "surveillance, coupled with long-range precision weaponry, has made massing forces near the front suicidal." However, incremental successes remain possible, albeit at a huge cost, by sending small groups of fighters into the death zone to capture advanced positions. "If Western backing for Ukraine holds, the war may well grind on at enormous cost, with Russia gaining ground only slowly. But Russia's ability to fight on at today's pace may also be coming to an end. And if Mr Putin pushes on regardless, he would be running another risk. After three years of thwarted offensives, a sudden collapse may become more likely in the Russian war economy than in Ukraine's defensive lines." The Russian army lost 1,000 soldiers killed and wounded and 45 artillery systems over the 24 hours. Soon Russia's "Special Military Operation" will surpass the "Great Patriotic War" (1941-1945) in duration. An international arrest warrant issued by the ICC for war crimes remains active for Vladimir Putin. An indictment is merely an allegation. Mr Putin is presumed innocent until proven guilty beyond a shadow of a doubt at an international tribunal to be held for him at a future date at the Hague.