In a future battlespace, boats, vehicles and weapons could deploy and travel with outer shells or coverings that change with the terrain — or even light and time of year — to add an extra layer of concealment.  That concept was one of the key testing lines of effort in an Army Corps of Engineers and Army Research Laboratory experiment in Pituffik, Greenland, earlier this year. The whole endeavor was part of a broader testing series organized by the International Cooperative Engagement Program for Polar Research (ICE-PPR) and the Office of Naval Research, a multi-national endeavor that underscores the ever-increasing…