Iran's position of power in the Strait of Hormuz

Military strategist Jennifer Parker on the story behind the biggest disruption to oil supplies in world history, happening now in the Strait of Hormuz.

The narrow waterway in the Persian Gulf has a particular geographical importance to the world, as the land on one side belongs to Iran, and the country has a history of using it to pressure its enemies in times of conflict.A quarter of all oil production passes through it so disrupting that flow can have an enormous impact on the global economy.

Right now, in response to heavy bombardment from...