HMS Anson, which is fitted with Tomahawk Block IV land-attack missiles with a range of 1,000 miles and Spearfish heavyweight torpedoes, left port in Perth on March 6.
The Type 45 Destroyer will head to the eastern Mediterranean to provide extra protection as Tehran continues to lash out in response to US and Israeli strikes.
The deployment of HMS Dragon to Cyprus has been delayed amid claims from union officials that the naval base responsible for its repairs only operates on a 'nine-to-five, Monday-to-Friday' schedule.
While British warships are poised to defend Ukrainian waters, HMS Daring will not- because it has spent more time being repaired and worked on than it has at sea, according to independent analysis.
The final resting place of Captain Cook's Endeavour, the legendary ship that first brought the British to Australia, has been identified after 250 years.