Aunified group of countries that communist bloc was located in what world region

A unified group of countries, the Communist bloc was located in central and Eastern Europe, East Asia and Southeast Asia under the hegemony of the URSS. This bloc was denominated as Eastern bloc. And encompassed countries such as Poland, Romania, Bulgaria, Hungary and several other European countries. This was a group that was led by the mighty Stalin of USSR.

union blockade

explanation:

the union blockade in the american civil war was a naval strategy by the united states to prevent the confederacy from trading.

the blockade was proclaimed by president abraham lincoln in april 1861, and required the monitoring of 3,500 miles (5,600 km) of atlantic and gulf coastline, including 12 major ports, notably new orleans and mobile. those blockade runners fast enough to evade the union navy could only carry a small fraction of the supplies needed. they were operated largely by british citizens, making use of neutral ports such as havana, nassau and bermuda. the union commissioned around 500 ships, which destroyed or captured about 1,500 blockade runners over the course of the war.

your answer would be (a)