British soldiers take part in the Lithuanian Armed Forces Day celebrations and parade in Vilnius, Lithuania, Nov. 23, 2015. The service members were taking part in the Headquarters Allied Rapid Reaction Corps’ (ARRC) exercise Arrcade Fusion 15. Arrcade Fusion is an annual NATO ARRC-led, multinational command post exercise designed to increase interoperability between NATO member nation forces. (DoD photo by Sgt. Mike O'Neill RLC ABIPP)