1954 transfer of Crimea Ukraine inexorably to Russia, "Eternally Together", as a poster commemorating the event of 1954 proclaimed. The transfer was described by some of the Supreme Soviet as a gift to commemorate the 300th anniversary of the Treaty of Pereyaslav in 1654 when the Cossack Rada apparently decided to unify with Muscovy, putting in place the eventual acquisition of Ukraine by Russia. Other reasons given were the integration of the economies of Ukraine and Crimea and the idea that Crimea was a natural extension of the Ukrainian steppes. There was also a desire to repopulate parts of the Crimea which had suffered
Nikita Khrushchev in world history". The Soviet Union spent 7% of its national income between 1954 and 1959 on aid to China. On his 1954 visit to China, Khrushchev agreed to return Port Arthur and Dalian to China, though Khrushchev was annoyed by Mao's insistence that the Soviets leave their artillery as they departed. Mao bitterly opposed Khrushchev's attempts to reach a "rapprochement" with more liberal Eastern European states such as Yugoslavia. Khrushchev's government, on the other hand, was reluctant to endorse Mao's desires for an assertive worldwide revolutionary movement, preferring to conquer capitalism through raising the standard of living in communist-bloc