public function getAttack($playerHash, $countryIdFrom, $countryIdTo)
 {
     $from = Country::find($countryIdFrom);
     /** @var $from Country */
     $to = Country::find($countryIdTo);
     $player = Player::getByHash($playerHash);
     if ($from->isOwnedBy($player)) {
         Action::attack($from, $to);
     }
 }