(Blade) Problem with showing subcats in dropdown menu

Hello, i have a problem with blade i make this

<div class="collapse navbar-collapse">
                <ul class="nav navbar-nav">
                    <li class="active"><a href="{{ url('/') }}"><b class="fa fa-home"></b> Начало</a></li>
                    @foreach($categories as $cat)
                        @if($cat->children->count() > 0)
                            <li class="dropdown ">
                                <a href="#" class="dropdown-toggle" data-toggle="dropdown">{{ $cat->name }} <i class="fa fa-caret-down"></i></a>
                            </li>
                                <ul class="dropdown-menu">
                                    @foreach($cat->children as $subcat)
                                    <li><a href="{{ url('/category/'.$subcat->slug) }}">{{ $subcat->name }}</a></li>
                                    @endforeach
                                </ul>
                        @else
                            <li class=""><a href="{{url('/category/'.$cat->slug)}}"><b class=""></b> {{$cat->name}}</a> </li>
                            @endif
                    @endforeach
                </ul>
            </div>

It work but it put subcategory in my main navbar! I mean this: http://prntscr.com/k5kvmw