As president, John Adams tried to expand federal power by: A. shutting down all banks other than the Bank of the United States.
B. supporting laws that punished people for criticizing the
government.
C. starting wars to demonstrate the power of the U. S. military.
D. preventing state governments from passing any new laws.

B. supporting laws that punished people for criticizing the

Explanation:

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.

it was douglas macarthur..