Please see this image of a recent news item from a UK local newspaper of last Wednesday, which begins:
"A Nottingham mosque has signed the Armed Forces Covenant, ushering in a wave of Muslim-owned businesses which are now committed to supporting members of the military."
Several Muslim-owned businesses in the area are mentioned as having signed this "pledge" to help current and former members of the British Armed Forces.
Incidentally, since the word "bai`at" is usually translated as "pledge", one may say that this mosque and the businesses mentioned have taken the bai`at at the hand of a British Minister of Defence.
I don't somehow think that we will hear opponents of Hazrat Mirza Ghulam Ahmad applying the title "British agent" to these people!