Amilitary tactic through which ports are shut off to keep people or supplies from moving in or out

A military tactic through which ports are shut off to keep people and or supplies from moving in or out is called a blockade. A blockade is usually directed at an entire country or region and is  different  from a siege which targets a fortress or a city. It is also distinct from  an embargo or sanctions, which are actually legal barriers to trade.

While most blockades in history took place at sea , blockades were also used on land to prevent someone from coming into a certain area. In the 20th Century, air power has also been used to enhance the effectiveness of the blockade by halting air traffic within the blockaded airspace.

answer: andrew johnson

17th u.s. president

in what way were president abraham lincoln's and president andrew johnson's reconstruction plans similar? a)both reserved seats in the congress for former confederate war leaders. b)both granted voting rights to the newly freed slaves. d) both required southerners to support the thirteenth amendment to abolish

explanation:

profound political, administrative, and social changes in the british isles.