Officers and soldiers from Headquarters Allied Rapid Reaction Corps, (HQ ARRC) complete final preparations before the start of Exercise ARRCADE Fusion 15 in Latvia, Nov. 7, 2015. ARRCADE Fusion is an annual NATO ARRC-led, multinational command post exercise designed to increase interoperability between NATO member nation forces. (DoD photo by WO2 Dan Harmer, NATO, GBR Army)