WW1 from above
 

A very good documentary.

Looks like an unlicensed knock-off. Blocked in the UK as it contains content from BBC Studios.

Also blocked in France, for the same reasons.

And in Hungary.

And Australia

But not in the US

It sounds interesting, though.

It is blocked in Vietnam where I currently am, but via the magic of VPN, I have discovered it is also blocked in Singapore, Hong Kong, Thailand, Australia and New Zealand.

However, it is available in Canada, the USA and Mexico.

Very odd.