yes
Yes, any Irish or commonwealth national can join the British armed services, although an oath to HM the Queen is mandatory.
Yes they can.
No, Ireland and Britain are different countries, you would have to leave the Irish Army, then try to get permission to join the British army
Inorder to join either army you must be a valid citizen
Become a British subject (citizen) then apply.
You have to be a US citizen to join the US marines i think its actually permanent resident
Yes, an Irish person has to take an oath of allegiance to the British crown if they decide to join the British Army.
my name is nganga john karanja i want to aply british army
Yes, a Zimbabwean can join the British Army, but there are specific eligibility criteria. Generally, applicants must be a British citizen, a citizen of a Commonwealth country, or a foreign national with indefinite leave to remain in the UK. Zimbabweans who hold British citizenship or meet these criteria can apply. Additionally, the British Army often seeks to recruit individuals with relevant skills or experience.
No, The only people who are eligible to join the British Army are British Citizens, who are born in Britain. Citizens of Nepal can join the Brigade of Gurkha's. Commonwealth Citizens may join the British Army, if they meet all the elibility.
You have to be a citizen to join the army.
No. Not unless you become a UK citizen, as required by every other post in the British Army.