<P> A groomsman (North America), or usher (British Isles) is one of the male attendants to the groom in a wedding ceremony . Usually, the groom selects close friends and relatives to serve as groomsmen, and it is considered an honor to be selected . From his groomsmen, the groom usually chooses one to serve as best man . </P> <P> For a wedding with many guests, the groom may also ask other male friends and relatives to act as ushers without otherwise participating in the wedding ceremony; their sole task is ushering guests to their seats before the ceremony . Ushers may also be hired for very large weddings . </P> <P> In a military officer's wedding, the roles of groomsmen are replaced by swordsmen of the sword honor guard . They are usually picked as close personal friends of the groom who have served with him . Their role includes forming the traditional saber arch for the married couple and guests to walk through . </P>

Who is the person that marries the bride and groom