13.1 Unity of Effort across the Foreign-Domestic Divide 400 13.2 Unity of Effort in the Intelligence Community 407 13.3 Unity of Effort in Sharing Information 416 13.4 Unity of Effort in the Congress 419 13.5 Organizing America's Defenses in the United States 423 Appendix A: Common Abbreviations 429 Appendix B:Table of Names 431 Appendix C: Commission Hearings 439 Notes 449 vii p. FAA Air Traffic Control Centers p. Reporting structure, Northeast Air Defense Sector p. 32-33 Flight paths and timelines p. Usama Bin Ladin p. Map of Afghanistan p. Khalid Sheikh Mohammed p. 238-239 The 9/11 hijackers p.The World Trade Center Complex as of 9/11 p.The World Trade Center radio repeater system p.The World Trade Center North Tower stairwell with deviations p.The Twin Towers following the impact of American Airlines Flight 11 and United Airlines Flight 175 p.The Pentagon after being struck by American Airlines Flight 77 p.American Airlines Flight 93 crash site,

This paper analyzes the war in Ukraine as an outcome of multilayered rivalry combined with unintentional mistakes committed by all possible sides. The first layer of competition concerns domestic differences visible between the Western and Eastern part of Ukraine. The second layer covers the regional rivalry between Poland and Russia, which has significantly contributed to the instability of Eastern Europe for several centuries. Finally, the third layer concerns the geopolitical game for influence between the West, led by the United States, and Russia along with several satellite states. Ukraine proved to be just another object of this competition, composed of such events as the Kosovo intervention, the Orange Revolution, the Caucasus war in 2008 and the Syrian chemical crisis.

In 2016, more than 13,400 terrorist attacks took place around the world, resulting in more than 34,000 total deaths, including more than 11,600 perpetrator deaths. This represents a 9 percent decrease in the total number of terrorist attacks, and a 10 percent decrease in the total number of deaths, in comparison to 2015. Although terrorist attacks took place in 108 countries in 2016, they were heavily concentrated geographically. The vast majority of attacks (87%) and deaths (97%) occurred in the