My fiancée lives in London and is on a work permit. we recently got engaged and I would love to bring him to the United States. we have plans on going back to our home country for a wedding celebration, but probably it will happen in 6-7 month. Is it better to bring him as my fiancée here, and solmenize the marriage here than go back together for the wedding celebration back home, or complete the weeding in Bangladesh and than come to the US and then apply for him? If he came as my fiancée on a visa how long would it take for him to receive a green card? is it possible for him to travel with me back home without the green card?