Over thousands of years, countries have safeguarded their citizens by doing all of the following except

Probably 1, however I can see why that would be a tiny bit confusing.

Building walls protects from incoming invaders(at least back in the day), creating armies, makes a force to go and fight to protect the people, and what was the other one? Oh yea, moving to a safer place.

Doing that would mean making invasions less likely, and making your people feel and be safer.

Hope this helps.

the correct answer of the given question above would be the first option. it is important to know a currency's exchange rate when you are planning for the expenses for an overseas trip. when you are overseas, the money you will be using should be exchanged for the currency depending on where you travel and currency changes from time to time and differs from country to country so it is necessary to know the rate beforehand. hope this answer .

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barrio is a spanish word meaning neighborhood. in spain, several latin american countries and the philippines, the term is also used officially to denote a division of a municipality while a ghetto is a part of a city in which members of a minority group live, typically as a result of social, legal, or economic pressure. the term may have originally been used in venice to describe the part of the city to which jews were restricted and segregated.