Justinians attempts to reconquer western territory left the east open to attacks by Persians and Slavs.
Justinian had come to the throne in 527. War with the Persians began in 540 and continued until a 50-year peace agreement was signed in 561.
The Sclaveni (as the Slavs then were known) gave Justinian problems in the Balkan region.
The Incan civil war weakened the empire exhausting its resources and killing its fighters, thus leaving the door open to conquest by the Spanish
With their far greater numbers, they might have repelled the European forces meaning that they could have retained control of the continent
Answer:
The Soviet Union's proclaimed goal was worldwide communism. Due to this, there had been no trust from the start between the two countries. ... The US feared further encroachment of the USSR and expansion of the "red zone".
this is no the exact answer sorry but this is why he did not trust the U.S Hope this helps!!!!