This document summarizes an article about three ETFs that provide exposure to military and defense stocks: the iShares U.S. Aerospace & Defense ETF, the PowerShares Aerospace & Defense ETF, and the SPDR S&P Aerospace & Defense ETF. It discusses how recent geopolitical tensions and terrorist attacks have increased investor interest in these stocks. For each ETF, it provides details on assets under management, top holdings, trading prices, and performance over the last year. While defense stocks may see short-term gains, the document notes that a full military response could quickly defeat ISIS and end the conflict.