What causes more than two and a half million deaths each year?

An unhealthy diet together with little exercise and smoking are the key preventable risks of non-communicable diseases and it’s estimated that low fruit and vegetable intake alone causes more than two and a half million deaths each year.
Question: What causes more than two and a half million deaths each year?

The United States military says troops have killed six Iraqi policemen and seven suspected militants during a raid in Baghdad. The military said the troops were attempting to arrest an Iraqi police officer accused of rebel activity. The military said fighting started when the troops were attacked from an Iraqi police position.
Question: How many Iraqi policemen were killed?