How to get Maven to run war:exploded but not war:war

I have a Maven pom that uses <packaging>war</packaging>. But actually, I don't want build the war-file, I just want all the dependent jars collected and a full deployment directory created.

So I'm running the war:exploded goal to generate the deploy directory:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-war-plugin</artifactId>
    <executions>
        <execution>
            <phase>package</phase>
            <configuration>
                <webappDirectory>target/${env}/deploy</webappDirectory>
                <archiveClasses>true</archiveClasses>
            </configuration>
            <goals>
                <goal>exploded</goal>
            </goals>
        </execution>
    </executions>
</plugin>

The trouble is, the war file still gets built. Is there a simple way of having <packaging>war</packaging> execute the war:exploded goal instead of the war:war goal?

Or is there another simple way to do this?