Europe
In 2017, the population of Europe was estimated to be 742 million according to , which is slightly more than one-ninth of the world's population. This number includes Asian Russia (Siberia, about 36 million people) but excludes the European part of Turkey, Cyprus and the Transcaucasian countries.
A century ago, Europe had nearly a quarter of the world's population. The population of Europe has grown in the past century, but in other areas of the world (in particular Africa and Asia) the population has grown far more quickly. Among the continents, Europe has a relatively high population density, second only to Asia. Most of Europe is in a mode of Sub-replacement fertility, which means that each new(-born) generation is being less populous than the older.
The most densely populated country in Europe (and in the world) is the microstate of Monaco.
Iraq War and the War on Terror
Nevertheless, these incentives off or improving territorial security in Europe remain subject to countervailing attitudes and political forces. Germany, the United Kingdom, and France all have large Muslim populations. And whereas the roughly1 5million Muslims living in the EU'S 15 current member states constitute about four percent of the total EU population, the 6 million Muslims (a liberal estimate) living in the United States compose only slightly higher than two percent of the U.S. population-a significant difference. European Muslims, however, are only half-accepted socially and are politically underrepresented. This marginal status makes them susceptible to radicalization-one factor that has helped prevent governments from taking steps that might seem anti-Muslim.