Story perspectives

Iran Fortifies Nuclear Complex Amid U.S. Tensions

2/13/2026

Summary

Story summary

Iran is strengthening defenses at the Isfahan nuclear complex after a potential U.S. strike, with tunnel entrances backfilled.
The Institute for Science and International Security (ISIS) says the steps mirror actions before previous U.S. operations.
Indirect talks between Tehran and Washington on Iran's nuclear program continue, with United States demanding reduced enriched uranium stockpile.
Iranian officials say they are willing to negotiate but insist on peaceful enrichment.

History

Historical Context

Iran's nuclear program, initiated in the 1950s under U.S. support, faced scrutiny after the 1979 revolution and subsequent clandestine activities. In 2015, the Joint Comprehensive Plan of Action (JCPOA) limited Iran's uranium enrichment to 3.67% and reduced its stockpile to 300 kg in exchange for sanctions relief. However, tensions have escalated since the U.S. withdrawal from the agreement in 2018, leading to renewed military threats and ongoing negotiations.

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Story summary

Iran is strengthening defenses at the Isfahan nuclear complex after a potential U.S. strike, with tunnel entrances backfilled.
The Institute for Science and International Security (ISIS) says the steps mirror actions before previous U.S. operations.
Indirect talks between Tehran and Washington on Iran's nuclear program continue, with United States demanding reduced enriched uranium stockpile.
Iranian officials say they are willing to negotiate but insist on peaceful enrichment.

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