At least a passport.
A Passport.
Yes, babies do not need identification to travel within the United States if they are under the age of 18 and are accompanied by an adult.
yes you do need a visa to travel from the Unitedkingdom to the united slates of America
Yes.
It depends on where you are coming from As Northern Ireland is part of the UK you will need the same Visa that you would need to enter any other part of the UK. If you are a UK citizen you do not need one
An identity card is sufficient.
Yes if you are to travel by air but if it is by sea of land, no need but you need a proof of identification and the passport is the best one you have for the child.
do I need a passport to travel from south wales UK to jersey
No, you do not need a passport to travel from Wales to the Isle of Coll, as both locations are within the United Kingdom. Travel between different parts of the UK does not require a passport. However, you may need to provide identification if traveling by certain transport services. It’s always a good idea to check specific travel requirements with your chosen transport provider.
No, as both are part of the United Kingdom.
No, you do not need a passport to travel domestically within the United States. A valid form of government-issued photo identification, such as a driver's license or state ID card, is typically sufficient for domestic travel.
Yes you need a passport whenever you leave the United Kingdom because you need it to get back again.