The Air Force in the Vietnam War - Air Force Association
The Air Force in the Vietnam War - Air Force Association
The Air Force in the Vietnam War - Air Force Association
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Ch<strong>in</strong>a<br />
Buffer Zone<br />
North <strong>Vietnam</strong><br />
Hanoi<br />
<strong>Air</strong> strikes around Hanoi and Haiphong were tightly constra<strong>in</strong>ed. Strikes <strong>in</strong> a prohibited<br />
zone required permission—seldom given—from Wash<strong>in</strong>gton. Limitations <strong>in</strong><br />
<strong>the</strong> restricted zone were severe and changed from week to week.<br />
<strong>The</strong> prohibited zones were 20 miles wide at Hanoi and eight miles wide at<br />
Haiphong. <strong>The</strong>y were surrounded by restricted zones, 60 miles wide at Hanoi and<br />
20 miles wide at Haiphong.<br />
Also, a buffer zone, about 25 miles wide, was established to prevent violations of<br />
<strong>the</strong> Ch<strong>in</strong>ese airspace. US aircraft could use it only to maneuver when position<strong>in</strong>g<br />
<strong>the</strong>mselves to attack targets outside <strong>the</strong> buffer zone.<br />
Restricted and Prohibited Zones<br />
Haiphong<br />
South <strong>Vietnam</strong><br />
Restricted Zone<br />
Prohibited Zone<br />
Reconnaissance aircraft photographed<br />
<strong>the</strong>se merchant vessels <strong>in</strong> Haiphong<br />
harbor.<br />
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