Change the Tag positions in SOAP XML using XSLT

I need to take the tag from one position to other.

The request is as follows

<Envelope>
    <Header>
        <Assertion></Assertion>
        <Security></Security>
    </Header>
</Envelope>

But I need an XSLT to put the assertion tag inside security as follows:

<Envelope>
    <Header>
        <Security>
   开发者_StackOverflow社区         <Assertion></Assertion>
        </Security>
    </Header>
</Envelope>

I appreciate Your Help. Thanks

The following stylesheet:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:template match="@*|node()">
        <xsl:copy>
            <xsl:apply-templates select="@*|node()" />
        </xsl:copy>
    </xsl:template>
    <xsl:template match="Assertion" />
    <xsl:template match="Security">
        <xsl:copy>
            <xsl:apply-templates select="@*|node()"/>
            <xsl:copy-of select="../Assertion"/>
        </xsl:copy>
    </xsl:template>
</xsl:stylesheet>

...produces the desired output when applied to your provided source:

<Envelope>
    <Header>
        <Security>
            <Assertion></Assertion>
        </Security>
    </Header>
</Envelope>