Russia has reportedly added up to 48 Su-35S fighters to its fleet since 2022, far outpacing Ukraine’s claimed seven losses. Despite Western weapons and air-defence support, Moscow continues expanding its frontline fighter force, raising fresh questions over Ukraine’s ability to counter Russia’s growing airpower.

Ukraine’s Defence Intelligence has identified 79 companies involved in producing Russia’s Su-35S fighter jets, including 22 that have yet to face international sanctions.

Russia has reportedly added up to 48 Su-35S fighters to its fleet since 2022, far outpacing Ukraine’s claimed seven losses. Despite Western weapons and air-defence support, Moscow…