There were several.
New Orleans. Mobile. Savannah. Charleston.
The most alarming confederate threat to the Union blockade was the ironclad Merrimack.
Semmes.
The Union blockade of Charleston, implemented during the Civil War, aimed to cut off supplies and trade to the Confederate states, thereby weakening their economy and military capabilities. Charleston was a significant Confederate port, and the blockade intended to prevent the import of arms, food, and other essential goods. By restricting access to this key location, the Union sought to cripple the Confederacy and hasten its defeat. Ultimately, the blockade played a crucial role in the overall strategy to isolate and demoralize Confederate forces.
The fish hook
Savannah
The Union naval blockade seriously hampered the Confederate war effort
To blockade the Confederate Ports, intercepting the blockade runners and hunt down the Confederate cruisers, which were trying to capture or sink the Union merchant ships, throughout the seas.
Wilmington, North Carolina
Savannah was a critical Confederate port city during the Civil War, serving as a key supply line for the Confederacy. The Union's strategy of a full blockade aimed to cut off these supply routes, thereby crippling the Confederate economy and military capabilities. By blockading Savannah, the Union sought to prevent the transport of goods and troops, ultimately contributing to the weakening of the Confederate war effort. The successful capture of Savannah in December 1864 marked a significant victory for the Union, further tightening the blockade's efficacy.
To stop aid from Europe.
A blockade NEW RESPONDENT The blockade and the hunting of the Confederate cruisers attacking the Union merchant ships.
Most records cite the fall of Wilmington, North Carolina on February 22, 1865. This was the last blockade running port of the South.