Las Vegas Wedding Sayings Will A Las Vegas Wedding Be Recognised For My NZ Boyfriend To Gain UK Marriage Visa?

Will a Las Vegas wedding be recognised for my NZ boyfriend to gain UK marriage visa? - las vegas wedding sayings

I'm English, my friend from New Zealand. We want to get married in Las Vegas, then back home to New Zealand and ask for a marriage visa to the United Kingdom to return to the United Kingdom.
Can you see no problem with that?
Is there something I should be aware of foreign versus 2 to get married in the United States?
Thanks