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- Ukraine has pushed Russia's Black Sea Fleet out of Crimea after two years of strikes.
- But retaking the peninsula will be extremely hard, military experts told BI.
- Recapturing it would require more manpower, firepower, air cover, and caution, experts said.
Ukraine has dealt a massive blow to Russia's Black Sea Fleet in Crimea.
Russia has retained control of Crimea since invading and annexing the peninsula in 2014 and secured Sevastopol as the headquarters for its Black Sea Fleet.