@foreach ($UnionAuthorities as $UnionAuthority)
          <option
                          @if($UnionAuthority_id)
                                          @if($UnionAuthority->id===$UnionAuthority_id)
                                                          selected
                                          @endif
                          @endif             
          value="{{$UnionAuthority->id}}">{{ $UnionAuthority->title}}</option>
@endforeach