Indicate the most significant foreign policy events in the second half of the 18th century.

Under Peter III, the Seven Years War ended, as a result of which Russia received nothing, despite its victory. This was due to the fact that Peter 3 signed not a peace treaty, but an alliance treaty, where he renounced all conquests. Under Catherine II, Crimea was annexed to Russia, which made it possible to gain access to the Black Sea, which was important for organizing foreign trade and economic development of the country.