What is a B2 visa and how can it be obtained for travel purposes?

A B2 visa is a type of non-immigrant visa that allows individuals to visit the United States for tourism or medical treatment. It can be obtained by applying through the U.S. embassy or consulate in your home country, providing necessary documentation such as a valid passport, proof of financial means, and a letter of invitation if applicable. The visa application process typically involves an interview with a consular officer to determine eligibility for the visa.