The presence of idle and unemployed young people in the developing world, or so-called “youth bulge,” is emerging as a catalyst for internal violence.

The U.S. Army is reorganizing to create smaller, more mobile units without sacrificing firepower. Some experts, however, wonder whether that aim addresses the lessons of Iraq.

Chinese entry into the manufacturing of commercial vehicles and aircraft has the potential to reshape the competitive landscape in two industries still dominated by G8 nations.

Classic military unit groupings differ greatly in their specialization and size, and from country to country. Here is a basic look at how modern ground, naval, and air units break down in terms of si…