# CSIS leak reporting sparks foreign-interference political crisis

Date: 2023

Shipping traffic through the Strait of Hormuz, a major maritime choke point for world energy trade, has been largely blocked by Iran since 28 February 2026, when the United States and Israel launched an air war against Iran. In retaliation, the Iranian Revolutionary Guard Corps (IRGC) issued warnings forbidding passage through the strait, boarded and attacked merchant ships, and laid sea mines in the strait. From 13 April to 29 May 2026, the US simultaneously blockaded Iranian ports.

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## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/canada-foreign-interference-leaks-spark-crisis-2023-02