You would need a visa to visit the United Kingdom in order to go to Belfast.
As Belfast is in the United Kingdom and Dublin is in the Republic of Ireland, technically you may need a visa or passport to go there, depending on your nationality or other factors. However, there are no passport checks done on the train. Usually if you have been allowed access to Northern Ireland, you will also be allowed to get into the Republic of Ireland, but you need to check. See the website at the link below.
If you need a visa to go to Senegal, you need to apply for it.
no you don't need a visa to go to Algeria
does my passport need to be in date to go to belfast
Yes you will need a visa
Yes
If I am a resident of the US. Do I need a visa to go to Canada?
No, you do not need a visa.
Yes,you do need a visa.
Yes US citizens need a visa.
yes Nepalese they need visa to go Maldives but they will get visa upon Arrival