Question

what was the formidable document​

Answer 1

Explanation:

The most formidable document I have ever seen addressed by one state to another that was independent . this was how the British foreign secretary sir Edward grey described the ultimatum issued by austria to serbia on 23july1914. This document perhaps more than any other ,set Europe on course for warwarin 1914.

and there is so, much matter to say.

I hope this may help you.