David Kilcullen is the award-winning author of Accidental Guerrilla (2009) and Counterinsurgency (2010) and now Out of the Mountains: The Coming Age of the Urban Guerrilla (2013).His newest book takes us away from the remote, rural guerrilla warfare of Afghanistan, and into the marginalized slums and complex security threats of the world's coastal cities. Scrutinizing major environmental trends -- population growth, coastal urbanization, and increasing digital connectivity-- he projects a future of feral cities, urban systems under stress, and increasing overlaps between crime and war, internal and external threats, and the real and virtual worlds. Dave is the Chief Executive Officer of Caerus Associates a strategic research and design firm that specializes in innovative, often counter-intuitive solutions to the world's hardest problems: economic development, violent conflict, humanitarian assistance, energy shortages and climate change. He is an advisor to NATO, and a consultant to the US and allied governments, international institutions, private sector companies and non-profit organizations seeking to make a difference in conflict and post-conflict environments and the developing world.Before founding Caerus, Dave served 24 years as a soldier, diplomat and policy advisor for the Australian and United States governments. He was Special Advisor to the Secretary of State from 2007-2009 and Senior Advisor to General David Petraeus in Iraq in 2007. He has provided advice at the highest levels of the Bush and Obama administrations, and has worked in peace and stability operations, humanitarian relief and counterinsurgency environments in the Asia-Pacific, Middle East, South Asia and Africa. He is a well-known author, teacher and consultant, advising the U.S. and allied governments, international organizations, NGOs and the private sector.