private void ExecuteAddAttack()
        {
            AddAttackWindowViewModel addAttackWindowViewModel = new AddAttackWindowViewModel();

            Model.Attack attack = addAttackWindowViewModel.GetAttack();
            if (attack != null)
            {
                AttackViewModel attackViewModel = new AttackViewModel {
                    Attack = attack
                };
                AttackViewModels.Add(attackViewModel);
            }
        }
 private void ExecuteRemoveAttack()
 {
     AttackViewModels.RemoveAt(SelectedAttack);
 }