The union of <a href="https://en.wikipedia.org/wiki/Serbia_and_Montenegro" id="mwATA" rel="mw:WikiLink" title="Serbia and Montenegro">Serbia and Montenegro</a> comes to an end with <a href="https://en.wikipedia.org/wiki/Montenegro" id="mwATE" rel="mw:WikiLink" title="Montenegro">Montenegro</a>'s formal declaration of independence.