Possible Clues:

• There'd be some resistance to putting this on official letters in Ireland
• There'd be some resistance against putting this on official correspondance in Ireland
• If you put this on government envelopes in Ireland there would be some resistance to it
• Measures of resistance from noisy Eastenders' houses
• There's resistance to its being put on an Irish letter
• There would be some resistance to get around on one in the British Navy
• Is there some resistance to getting round in the British Navy?
• There'd be some resistance to putting that on Government mail in Ireland
• Resistance units serving the Queen
• Resistance units in the employment of the Queen