No, you just need a national ID. Their both part of the EU.
You need a passport or an ID.
Not necessary
Yes
Yes.
A passport is not needed to travel between the UK and Ireland.
You need a passport or an ID.
You can travel immediately after acquiring a passport.
There are several countries within the European Union that have open borders with each other. Travel between them does not need a passport. Although the UK is part of the European Union, it does not have open borders and so a passport is needed to enter the country. The requirements for entry vary depending on nationality and the passport held so it is important to contact the UK embassy or consulate to confirm the requirements before travel.
You cannot travel anywhere on an expired passport.
If that travel document is a passport then yes you can. Without passport it wont be possible
You don't need a passport to travel between the UK and the Republic of Ireland.
If having a passport for 3 years from German it will not be good. You will have to get a new passport to travel to the UK.
Yes
Yes, You always need a passport (or EU national identity card) to get in our out of the UK.
UK passport holders require 6 months left on their passport