@@ -39,8 +39,11 @@ func NewKillCommand(dockerCli *command.DockerCli) *cobra.Command {

 func runKill(dockerCli *command.DockerCli, opts *killOptions) error {

 	var errs []string

 	ctx := context.Background()

+	errChan := parallelOperation(ctx, opts.containers, func(ctx context.Context, container string) error {

+		return dockerCli.Client().ContainerKill(ctx, container, opts.signal)

+	})

 	for _, name := range opts.containers {

-		if err := dockerCli.Client().ContainerKill(ctx, name, opts.signal); err != nil {

+		if err := <-errChan; err != nil {

 			errs = append(errs, err.Error())

 		} else {

 			fmt.Fprintf(dockerCli.Out(), "%s\n", name)