<span>leather saddles and stirrups</span>
They didn't. At the time that Jesus lived the Romans had very little dealings with him. In fact they didn't even know who he was. That's why when it came time to arrest Jesus they had to have someone (Judas) point him out. It was only a certain group of Jewish authorities who perceived Jesus as a threat and so acted against him.
I hope this question refers to the battle of stalingrad
This was a major turning point in WW2 as the Red guard strategically frustrated Hitler delaying his lightening victory tactics, until his soldiers were starved off food, supplies and weakened by encroaching winter. the heavy military loss that Hitler suffered at Stalingrad was never recoverable and from that point forward Hitler was fighting a defensive war from two fronts, a fete that heavily suffocated him.
Sarajevo, Bosnia and Herzegovina, done by Princip