Answer:
I don't know if this is the answer but I hope it helped
Explanation:
Invasions by Barbarian tribes
The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders.
Constantinople since it is the heart of the empire.
Answer:
Evacuation took place in several waves. The first came on 1 September 1939.
Explanation:
(the day Germany invaded Poland and two days before the British declaration of war)
Answer:
Gas
Machine Guns
Trenches
Explanation:
ww1 was all about using mustard gas and it was popularized before being banned after ww1 and ww1 was the first introduction to full auto machine guns similar to LMGs nowdays and trenches were created to prevent getting shot, gassed or sprayed down by enemies