More than a thousand heavy U.S. battle tanks and other armor unloaded in Kandahar. Why? For any Middle Easterner, these tanks mean only one thing: trouble.
How did our relationship with Iran get so sour and complicated? Well, here are a few pointers for Americans to remember:
The fighting has intensified. Although a quartet of of Middle East peacemakers, including the US, the EU, the UN and Russia has tried to halt the fighting, neither side appear to be willing to sit down to talk.