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.
It is important to use standard weights and measures because everyone can understand what you are talking about when you use and form of measurement, be it pounds, kilograms, inches, or centimeters.
Explanation:
The First Battle of Bull Run, also known as the Battle of Manassas, marked the first major land battle of the American Civil War.
<span>The states had no power to interfere with federal institutions. </span>
