Armed Forces Day in Honduras

Day of rocket-artillery troops of Armenia on October 19;

Trafalgar Day in Great Britain on October 21 (celebration of the victory won by the Royal Navy, commanded by Vice-Admiral Horatio Nelson, over the combined French and Spanish fleets at the Battle of Trafalgar on 21 October 1805);

Armed Forces Day in Romania on October 25;

Day of the military chaplain in Ukraine on October 25;

Armed Forces Day in Benin on October 26;

Navy Day in United States on October 27 (unofficial, official date is October 13);