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? Concrete is a signature of Japanese Armytunnel construction. On islands like Iwo Jima,...

Lost Gold of World War II • S01E01 • 2019

� Concrete is a signature of Japanese Army
tunnel construction. On islands like Iwo Jima, the Japanese used
a unique cement mix to build an 11‐mile
network of tunnels and underground bunkers
to protect them from the impending
American invasion. The discovery of similar
cement here could mean the Breach 6 shaft really did intersect
a series of Japanese tunnels. And diggers were on the right
track before they died. ‐ That is just
a great find, guys

Full Transcript

00:00:01.000 --> 00:00:03.211

‐ Concrete is a signature

00:00:03.211 --> 00:00:05.063

of Japanese Army tunnel construction.

00:00:05.063 --> 00:00:07.382

On islands like Iwo Jima,

00:00:07.382 --> 00:00:09.801

the Japanese used a unique cement mix

00:00:09.801 --> 00:00:12.387

to build an 11‐mile network of tunnels

00:00:12.387 --> 00:00:14.139

and underground bunkers to protect them

00:00:14.139 --> 00:00:15.974

from the impending American invasion.

00:00:15.974 --> 00:00:18.101

The discovery of similar cement here

00:00:18.101 --> 00:00:20.353

could mean the Breach 6 shaft

00:00:20.353 --> 00:00:23.731

really did intersect a series of Japanese tunnels.

00:00:23.731 --> 00:00:26.943

And diggers were on the right track before they died.

00:00:26.943 --> 00:00:28.695

‐ That is just a great find, guys.

Duration

29 seconds

Views

Timestamp in Movie

00:18:59

Uploaded

Jun 21, 2025

Season

Episode

Genres

documentary, reality-tv

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Movie Summary

Legend has it that there is a treasure of immense value buried in the Philippine jungle - now a team of American experts, with the help of the only surviving witness, try to uncover the clues to solve the greatest mystery of WW2.