public async Task <IHttpActionResult> PostNation(Nation nation)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            try
            {
                await _SVC.AddNation(nation);
            }
            catch (DbUpdateException)
            {
                if (NationExists(nation.ID))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(CreatedAtRoute("DefaultApi", new { id = nation.ID }, nation));
        }
 async public Task <ActionResult> Add(Nation item)
 {
     return(Content(await _Service.AddNation(item)));
 }