The USSR was the main provider of weapons and ammunition for the North Vietnamese army and the Viet Cong guerrillas in the South. The Vietnamese also got aid and assistance from the People´s Republic of China. This was an expression of Communist solidarity with comrades fighting a war of national liberation (from the Communist perspective) against American imperialism and its allies in South Vietnam.
Linen, spices and silk came to Rome from East Asia. The Romans were very dependent on imports to sustain the empire. Maintenance of trade routes was paramount for the Romans.
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