MVC ValidationMessage to work incorrectly

In my opinion, I have the following:

     <fieldset>
        <legend>User Registration</legend>            
        <div class="editor-label">
            @Html.LabelFor(m => m.UsrName)
        </div>
        <div class="editor-field">
            @Html.TextBoxFor(m => m.UsrName)
            @Html.ValidationMessageFor(m => m.UsrName)
        </div>
        <div class="editor-label">
            @Html.LabelFor(m => m.Pwd)
        </div>
        <div class="editor-field">
            @Html.PasswordFor(m => m.Pwd)
            @Html.ValidationMessageFor(m => m.Pwd)
        </div>
        <div class="editor-label">
            @Html.LabelFor(m => m.ReEnterPwd)
        </div>
        <div class="editor-field">
            @Html.PasswordFor(m => m.ReEnterPwd)
            @Html.ValidationMessageFor(m => m.ReEnterPwd)
        </div>            
       <fieldset>
         <legend>Location</legend>
           <span id="locationDiv"> 
           @Html.RadioButtonFor(m => m.Location, "Loc1")  @Html.Label("Loc1")
           &nbsp;&nbsp; 
           </span>
           @Html.RadioButtonFor(m => m.Location, "Loc2") @Html.Label("Loc2")               
           @Html.ValidationMessageFor(m => m.Location)
        </fieldset>         

         <fieldset>
         <legend>Role</legend>
            @Html.RadioButtonFor(m => m.Role, "User") @Html.Label("User")
           &nbsp;&nbsp; @Html.RadioButtonFor(m => m.Role, "Admin") @Html.Label("Admin")
            @Html.ValidationMessageFor(m => m.Role)
         </fieldset>  

        <p>
            <input type="submit" value="Register User" />
        </p> 
    </fieldset>

      

        
        
        
      

    

Even if I do not have all the fields filled in, they still go to the controller, although they are all necessary. I thought that

    @Html.ValidationMessageFor

      

        
        
        
      

    

should have prevented it.

    [Required]
    public string Location { get; set; }

    [Required]
    public string Role { get; set; }

    [Required]
    [Display(Name = "User Name")]
    public string UsrName { get; set; }

    [Required]
    [StringLength(50, MinimumLength = 5, ErrorMessage = "Must have a minimum length of 5.")]
    public string Pwd { get; set; }

    [Required]
    [Display(Name = "Re-enter Password")]
    [StringLength(50, MinimumLength = 5, ErrorMessage = "Must have a minimum length of 5.")]
    [Compare("Pwd", ErrorMessage = "The password and re-entered password do not match.")]
    public string ReEnterPwd { get; set; }