The Irregular Challenge.

The article reports on the move of the U.S. to search for the right mix of assets, tactics and technologies to fight the threat of hybrid warfare. It mentions the move of the Navy to apply a combination of existing assets and security partnership initiatives, new technologies and tactics to grapple with indefinite threat. Vice Admiral William R. Burke, director of the Navy Quadrennial Defense Review (QDR), states that the challenge within the department is difficult to identify.