The lifting of United States sanctions on Eritrea coincided with rising security concerns in the Red Sea, where recent Houthi advances in Yemen have threatened shipping through the Bab el-Mandeb Strait.

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A U.S.-imposed oil blockade initiated in February 2026 has subjected Cuba to fuel shortages, severe economic hardship, and power grid blackouts

United Nations rights experts condemned the U.S. oil blockade on Cuba as a violation of international law

Human rights advocates and United Nations experts condemned the U.S. economic and oil blockade on Cuba as an unlawful act of siege warfare that caused severe energy and human crises

The Wall Street Journal reported that increased military assistance and front-line guidance from the Islamic Revolutionary Guard Corps helped Yemen's Houthi rebels take control of Yemen's Red Sea coast.

U.S. Central Command and the U.S. Treasury Department froze approximately $350 million in Iranian cryptocurrency assets in October 2026.

The U.S. Financial Crimes Enforcement Network issued a warning to financial institutions regarding potential Iranian regime misuse and diversion of religious tithes called khums.

The U.S. naval blockade has cost Iran an estimated $25 billion in lost crude oil export revenue since the war began.

On October 16, 2026, President Donald Trump signed an executive order waiving new sanctions and tariffs provided for under the Lindsey O. Graham Sanctioning Russia and Iran Act of 2026.

The Lindsey O. Graham Sanctioning Russia and Iran Act of 2026 was enacted by Congress to impose tariffs on major foreign purchasers of Russian energy and entities assisting Russia in evading sanctions.

Secretary of State Marco Rubio stated on October 17, 2026, that Russian diesel would have been sold regardless of U.S. intervention and that the 60-day sanctions pause allows evaluation of economic impacts.

The Trump administration authorized certain transactions involving Russian diesel on October 9, 2026, to allow Russia to supply diesel to U.S. and global markets.

Treasury Secretary Scott Bessent stated on October 18, 2026, that no sanctions were lifted on Russia and that only the diesel embargo was lifted during a 60-day examination period.

Senators Thom Tillis, John Cornyn, and Ted Cruz publicly criticized President Donald Trump's Russia sanctions waiver, with Tillis calling it beyond irresponsible and Cruz calling it a mistake.

President Donald Trump's executive order waiving Graham Act provisions avoids imposing secondary tariffs and sanctions on major buyers of Russian energy, including China and India.

Treasury Secretary Scott Bessent cited 2025 U.S. sanctions against Russian oil companies Rosneft and Lukoil to assert that no administration has been tougher on Russia than Donald Trump's.

The U.S. Treasury Department sanctioned the Iraq-based International Development Bank for Investment and Finance on October 15, 2026 for providing Iran access to U.S. dollars and proxy financing.

The U.S. Treasury Department designated Jazireh International Bank Company and Chabahar International Bank Overseas Company on October 15, 2026 for operating in the Iranian financial sector.

Yemen's Houthi rebels launched a maritime blockade against Saudi Arabia in July 2026, conducting strikes against Saudi oil tankers, energy infrastructure, and airports.

U.S. Treasury Secretary Scott Bessent launched Operation Economic Outcast in August 2026 to target smuggling routes, shadow banking networks, and financial channels supporting Iran.

Five Republican lawmakers, alongside Democratic colleagues, sent a letter copied to Treasury Secretary Scott Bessent and Secretary of State Marco Rubio urging President Donald Trump to reconsider the Russian diesel deal.