Blockaded, militarily Crossword Clue

 The 7-letter word for official ban or blockade is Embargo.

An embargo is a government order that prohibits trade with another country. It can be used as a way to punish a country or to try to force it to change its policies.

The word "embargo" comes from the Spanish word "embargar", which means "to seize". It was first used in English in the 16th century.

Embargoes can be very effective in disrupting trade and causing economic hardship. They can also lead to political instability and even war.

Some famous embargoes include:

The British embargo on the United States during the American Revolutionary War (1775-1783)

The US embargo on Cuba (1960-present)

The UN embargo on Iraq (1990-2003)

Embargoes are a controversial issue. Some people believe that they are a legitimate way to punish countries that violate international law or that pose a threat to the world. Others believe that they are an unfair and ineffective way to achieve political goals.

I hope this helps!