Mark N. Katz is a professor of government and politics at George Mason University. He is the author of many books and articles, including Leaving without Losing: The War on Terror after Iraq and Afghanistan (Johns Hopkins University Press, 2012).
Comment: Clearer rules of engagement and Russia behaving itself around foreign borders can help avoid the situation spiralling out of control, writes Mark Katz.
Comment: Russia's intervention in Syria is framed by its president as something that protects both Russian and Western interests. But the assumptions behind this are false, writes Mark Katz.