What is Kharg Island? The Iranian oil site Trump may be planning to invade

The island less than 20 miles off Iran accounts for more than 90% of the country's oil exports.

Less than 20 miles off Iran’s shallow coastline sits an island made of hard coral — a natural, geological platform rising from the Persian Gulf that’s perfect for one thing: exporting oil.

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This is Kharg Island, a crucial outcrop 5 miles long that has proven central to the Iran war.

President Donald Trump on Thursday renewed threats to seize Kharg Island, which accounts for more than 90% of Iran’s oil exports.