diff --git a/components/cli/docs/reference/commandline/stack_deploy.md b/components/cli/docs/reference/commandline/stack_deploy.md
index 9f1ea3df60..b474d50875 100644
--- a/components/cli/docs/reference/commandline/stack_deploy.md
+++ b/components/cli/docs/reference/commandline/stack_deploy.md
@@ -25,7 +25,7 @@ Aliases:
 
 Options:
       --bundle-file string    Path to a Distributed Application Bundle file
-  -c, --compose-file string   Path to a Compose file
+  -c, --compose-file strings  Path to a Compose file
       --help                  Print usage
       --prune                 Prune services that are no longer referenced
       --resolve-image string  Query the registry to resolve image digest and supported platforms
@@ -76,14 +76,12 @@ Creating service vossibility_ghollector
 Creating service vossibility_lookupd
 ```
 
-Only a single Compose file is accepted. If your configuration is split between
-multiple Compose files, e.g. a base configuration and environment-specific overrides,
-you can combine these by passing them to `docker-compose config` with the `-f` option
-and redirecting the merged output into a new file.
+If your configuration is split between multiple Compose files, e.g. a base
+configuration and environment-specific overrides, you can provide multiple
+`--compose-file` flags.
 
 ```bash
-$ docker-compose -f docker-compose.yml -f docker-compose.prod.yml config > docker-stack.yml
-$ docker stack deploy --compose-file docker-stack.yml vossibility
+$ docker stack deploy --compose-file docker-compose.yml -f docker-compose.prod.yml vossibility
 
 Ignoring unsupported options: links
 
diff --git a/components/cli/e2e/container/kill_test.go b/components/cli/e2e/container/kill_test.go
new file mode 100644
index 0000000000..25a158c113
--- /dev/null
+++ b/components/cli/e2e/container/kill_test.go
@@ -0,0 +1,53 @@
+package container
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/docker/cli/e2e/internal/fixtures"
+	"github.com/gotestyourself/gotestyourself/icmd"
+	"github.com/gotestyourself/gotestyourself/poll"
+)
+
+func TestKillContainer(t *testing.T) {
+	containerID := runBackgroundTop(t)
+
+	// Kill with SIGTERM should kill the process
+	result := icmd.RunCmd(
+		icmd.Command("docker", "kill", "-s", "SIGTERM", containerID),
+	)
+
+	result.Assert(t, icmd.Success)
+	poll.WaitOn(t, containerStatus(t, containerID, "exited"), poll.WithDelay(100*time.Millisecond), poll.WithTimeout(5*time.Second))
+
+	// Kill on a stop container should return an error
+	result = icmd.RunCmd(
+		icmd.Command("docker", "kill", containerID),
+	)
+	result.Assert(t, icmd.Expected{
+		ExitCode: 1,
+		Err:      "is not running",
+	})
+}
+
+func runBackgroundTop(t *testing.T) string {
+	result := icmd.RunCmd(shell(t,
+		"docker run -d %s top", fixtures.AlpineImage))
+	result.Assert(t, icmd.Success)
+	return strings.TrimSpace(result.Stdout())
+}
+
+func containerStatus(t *testing.T, containerID, status string) func(poll.LogT) poll.Result {
+	return func(poll.LogT) poll.Result {
+		result := icmd.RunCmd(
+			shell(t, "docker inspect -f '{{ .State.Status }}' %s", containerID),
+		)
+		result.Assert(t, icmd.Success)
+		actual := strings.TrimSpace(result.Stdout())
+		if actual == status {
+			return poll.Success()
+		}
+		return poll.Continue("expected status %s != %s", status, actual)
+	}
+}