only if you are going to Northern Ireland, you need a passport to travel between England and Ireland.
Yes they do need a passport for Northern Ireland
If you are travelling from the USA to Northern Ireland, you need a passport to go there. You probably will also need a visa to enter Northern Ireland but you can find this out if you look up the British government website.
No.
Not from Northern Ireland as it is a part of the UK.
That will depend on your nationality. Irish and British citizens can travel between Ireland and Britain without needing a passport, though many will bring their passport with them anyway. If you are not from Ireland or Britain, then you will need a passport, and may even need a visa.
yes, because the republic of ireland is a seperate country from the UK you will need a passport to go there.
Yes, your passport.
Yes, you need your passport.
Not if they're travelling from Northern Ireland, but from anywhere else he/she does.
Yes - you will need to show it on arrival in Prague and to leave Northern Ireland.
I am a british citizen living in northern Ireland and I am attending a wedding in Scotland. I intend to travel to Scotland to the wedding by ferry but intend to fly back to belfast. I do not have a passport but do have a Northern Ireland electoral I.D. card - will this suffice as a means of I.D. at the airport.