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- Russia's air force seems to be increasingly using 1,100-pound cluster bombs.
- British intelligence says these weapons have been employed near the front-line city of Avdiivka.
- Avdiivka has become a fixation of Moscow and has seen intense ground combat in recent weeks.
Russia's air force appears to be increasingly relying on a heavy cluster bomb for damaging strikes on a section of the battlefield that has recently seen some of the deadliest fighting in Ukraine, according to Western intelligence.