Institute for the Study of War

Latest from ISW

The High Price of Losing Ukraine

Dec 14, 2023 - ISW Press

The United States has a much higher stake in Russia's war on Ukraine than most people think. A Russian conquest of all of Ukraine is by no means impossible if the United States cuts off all military assistance and Europe follows suit. Such an outcome would bring a battered but triumphant Russian army right up to NATO’s border from the Black Sea to the Arctic Ocean. The Ukrainian military with Western support has destroyed nearly 90% of the Russian army that invaded in February 2022 according to US intelligence sources, but the Russians have replaced those manpower losses and are ramping up their industrial base to make good their material losses at a rate much faster than their pre-war capacity had permitted.

Iran Update, December 13, 2023

Dec 13, 2023 - ISW Press

Hamas conducted a complex, multi-part ambush targeting an Israeli patrol and quick reaction force (QRF) in Shujaiya’s kasbah on December 12. Hamas ambushed an Israeli fireteam entering a three-building complex during Israeli clearing operations in Shujaiya. Hamas fighters detonated an IED and fired small arms at the Israeli fireteam during the initial ambush. Israeli forces nearby lost contact with the Israeli fireteam inside the building and launched a QRF to rescue the fireteam. One Israeli force moved north of the three-building complex, while another moved south. Hamas fighters continued to attack the QRF by setting off IEDs and throwing grenades at Israeli forces. Israel recovered the bodies of the Israeli fireteam, but five additional Israeli soldiers died during the rescue operation including a battalion commander, three company commanders, and the “head of the Golani Brigade’s forward command team.”

Russian Offensive Campaign Assessment, December 13, 2023

Dec 13, 2023 - ISW Press

The Kremlin appears to be returning to expansionist rhetoric last observed before Russia’s full-scale invasion of Ukraine in an effort to resurface its claims that Ukraine is part of historically Russian territory and discuss the borders Russian leaders regard as appropriate for a rump Ukrainian state. Deputy Chairman of the Russian Security Council Dmitry Medvedev misrepresented US President Joe Biden’s response to a media question about whether the United States’ policy is to win the war or help Ukraine to defend itself during a joint press conference with Ukrainian President Volodymyr Zelensky on December 12. Biden stated that the United States wants to see Ukraine win and that “winning means Ukraine is a sovereign, independent nation […] that can afford to defend itself today and deter further aggression.” Medvedev misrepresented Biden’s statements to suggest that the United States would be content if Ukraine simply existed as a country but does not care what Ukraine’s borders look like. Medvedev claimed that Ukraine can still technically be a sovereign country if the whole country remains within the borders of Lviv Oblast, for example. Medvedev also falsely claimed that Biden implied that the United States only supports Ukraine in defending itself but will not help Kyiv launch counteroffensives to liberate more of its land and people. Medvedev added that Ukraine could hypothetically “defend itself” as a rump state within the borders of Lviv Oblast.

Russian Offensive Campaign Assessment, December 12, 2023

Dec 12, 2023 - ISW Press

US intelligence reportedly assessed that Russian offensive operations in eastern Ukraine in fall 2023 and through the upcoming winter aim to weaken Western support for Ukraine instead of achieving any immediate operational objectives. The US intelligence community reportedly shared a declassified intelligence assessment with Congress on December 12 wherein US intelligence assessed that Russian offensive operations in eastern Ukraine aim to weaken Western support for Ukraine but have only resulted in heavy Russian losses and no operationally significant Russian battlefield gains. This assessment of high Russian losses and lack of operationally significant Russian gains is consistent with ISW’s assessment. US National Security Council Spokesperson Andrienne Watson reportedly stated that Russian forces have suffered more than 13,000 casualties and lost 220 combat vehicles along the Avdiivka-Novopavlivka axis (Avdiivka direction through western Donetsk Oblast) since launching offensive operations in October 2023. Watson added that Russia appears to believe that a military “deadlock” through the winter will drain Western support for Ukraine and give Russian forces the advantage despite high Russian losses and persistent Russian shortages of trained personnel, munitions, and equipment. ISW has assessed that Russian forces have been trying to regain the theater-level initiative in Ukraine since at least mid-November 2023 and have now likely committed to offensive operations in multiple sectors of the front during a period of the most challenging weather of the fall-winter season in an effort to seize and retain the initiative.[4]

Iran Update, December 12, 2023

Dec 12, 2023 - ISW Press

Palestinian militias are attempting to resist Israeli advances north and east of Khan Younis. The al Qassem Brigades—the militant wing of Hamas—claimed that it detonated multiple claymore-type, anti-personnel mines targeting ten Israeli soldiers east of Khan Younis. The militia also claimed that it inflicted five casualties during a small arms clash with Israeli forces along the Israeli forward line of advance in al Qarara, north of Khan Younis . The al Qassem Brigades separately mortared Israeli soldiers advancing north and east of Khan Younis. The al Quds Brigades—the militant wing of Palestinian Islamic Jihad (PIJ)—claimed that it conducted four mortar and rocket attacks on Israeli forces advancing into Khan Younis. Al Quds Brigades fighters fired tandem-charge rocket-propelled grenades (RPG) at an Israeli armored personnel carrier east of Khan Younis. The National Resistance Brigade—the militant wing of Democratic Front for the Liberation of Palestine (DFLP)—used mortars against Israeli forces advancing east of Khan Younis. Residents published footage of audible small arms fire east of Khan Younis on December 12. The BBC reported on December 11 that the Israel Defense Forces (IDF) had captured most of the four main towns east of Khan Younis.

Iran Update, December 11, 2023

Dec 11, 2023 - ISW Press

Israeli forces are degrading Hamas’ battalions in Shujaiya and Jabalia. Israeli Defense Minister Yoav Gallant said on December 11 that Hamas’ Jabalia and Shujaiya Battalions are “on the verge of being dismantled.” CTP-ISW defines “degrade” as a temporary effect whereby a unit’s losses seriously impede its ability to continue executing assigned missions while the unit remains able to operate. Israeli forces captured Hamas military infrastructure in Jabalia, including explosives manufacturing facilities, training facilities, and weapons caches. The loss of these facilities will temporarily negatively affect Hamas’ Jabalia al Balad Battalion’s ability to execute its assigned missions, which include using improvised explosive devices and rocket-propelled grenades to resist Israeli advances.