Yes, you do.
Yes, they definitely need a passport to legally enter the United States.
As long as you are from the United States citizen, You can enter it. We are a United States territory
Vietnam Immigration policy regulates that all UNITED STATES passport holders need to apply for a Visa before entering the country. you can go directly to Vietnam embassy in the state or apply online if you consider the faster process. you can apply online with 15 $ with an agency named; vietnamese private tours
They will need a visa to enter the United Kingdom in order to enter Northern Ireland.
Yes. You always need shots when you're going out of state.
Indeed.
how to enter your country i need hotel s job
yes. He does
You can enter the US without it only if you have other proof of your citizenship and identity. If not, you need your passport.
To state the Vietnam policy for each of the following presidents a person would need to know what the following is. When this is not included with the question the answer will not be able to be known.
yes they also need to knock and state that it is the police
Yes you do, in order for you to enter back in the country.