What is one way that southerners attempted to protect their ports

The evasion of the naval blockade during the Civil War was a set of operations designed to avoid the situation of blockade that the unionist side imposed on the Confederate side during the American Civil War, which stretched over 5,600 kilometers (3,500 miles) , from the Atlantic Ocean and the Gulf of Mexico, and to the Mississippi River. The evasion was carried out by means of steamships, many of them specially built to reach a high speed for the time, that had to sail normally at night to not be detected. If they were sighted, the ships (called blockade runners) tried to maneuver or simply surpass any Union ship that was acting as a blocking patrol. The boats used for this task were generally privately owned, often operating with a privateering license issued by the Confederate States of America.

assuming that you are talking about the one in egypt: hecka oil

explanation:

the berlin blockade was an international crisis that arose from an attempt by the soviet union, in 1948–49, to force the western allied powers (the united states, the united kingdom, and france) to abandon their post-world war ii jurisdictions in west berlin. in march 1948 the allied powers decided to unite their different occupation zones of germany into a single economic unit. in protest, the soviet representative withdrew from the allied control council. coincident with the introduction of a new deutsche mark in west berlin (as throughout west germany), which the soviets regarded as a violation of agreements with the allies, the soviet occupation forces in eastern germany began a blockade of all rail, road, and water communications between berlin and the west. on june 24 the soviets announced that the four-power administration of berlin had ceased and that the allies no longer had any rights there.