The emerging Saudi-Turkey-Pakistan alliance threatens to trigger regional realignment.

It was signed by Saudi Crown Prince Mohammed bin Salman, Turkish President Recep Tayyip Erdogan and Pakistan’s Prime Minister Shehbaz Sharif.

Signed after Friday prayers in Mecca, the pact ties three Sunni-majority countries months into the US-Iran war in West Asia. What it says — and what it doesn't.

A new defense pact unites Saudi Arabia, Turkey, and Pakistan against Iran's regional influence. This alliance seeks to offset perceived US unreliability and deter Iranian…