Here is the complete, strictly factual YouTube SEO package optimized for the U.S. audience. Per your instructions, all dramatic embellishments have been removed, and the content relies exclusively on verified reports from the Associated Press, Reuters, CBS News, The New York Times, and official U.S. government sources provided in the text.

**1. One High CTR USA YouTube Title**
Pentagon Revises U.S. Troop Casualties in Iran War

**2. Five Alternative Viral Titles**
* U.S. Senators Demand Answers on Iran War Casualties
* Why Trump Switched Air Force One Planes in Turkey
* CENTCOM Enforces U.S. Naval Blockade in Gulf of Oman
* Operation Epic Fury: Verified Casualty and Blockade Updates
* The Pentagon’s 18 to 14 Casualty Revision Explained

**3. SEO Optimized Description**
Recent developments in the ongoing conflict between the United States and Iran, officially named Operation Epic Fury, have prompted a U.S. Senate inquiry into official military casualty reporting [1, 2]. According to reports from The New York Times and CBS News, the Pentagon's Defense Casualty Analysis System (DCAS) revised the official U.S. death toll from 18 down to 14 [2-4]. Military officials cited by the media explained that four recent deaths were removed because they occurred after an April ceasefire declaration, even though hostilities have since resumed [3, 5, 6]. The Pentagon officially attributed the change to temporary data disruptions [7-9]. The fallen include service members such as 1st Lt. Tyler James Feehan and Sgt. Michael Emmanuel Swinton [10, 11]. In response to these discrepancies, U.S. Senators have demanded a full and accurate accounting of the war's human cost from the Defense Department [1, 12].

Simultaneously, U.S. officials confirmed to CBS News and The New York Times that President Donald Trump switched to an older Air Force One aircraft when departing a NATO summit in Turkey [13-16]. Intelligence indicated a credible threat from Iranian proxies plotting to fire a missile at the president's plane [13-15, 17].

In the Persian Gulf, the U.S. military continues to actively enforce a naval blockade against Iran [18]. The Associated Press and U.S. Central Command (CENTCOM) report that U.S. forces have fired upon and disabled merchant vessels, including the M/T Lavine, after the ships attempted to breach the blockade in the Gulf of Oman [19, 20].

This video provides a factual overview of these events based entirely on official U.S. government statements, Associated Press reporting, and Reuters coverage.

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**5. 50 High Search Volume YouTube Tags**
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