эшело́н

nounmasculineinanimatecountablesomewhat often used (#4741)C2

1.
troop train, special train, military transport trainmilitary
Эшело́н с солда́тами при́был на фронт.
The troop train arrived at the front.
A train carrying troops, evacuees or freight, usually in wartime.
2.
echelon, tier, level
Он попа́л в вы́сшие эшело́ны вла́сти.
He made it into the highest echelons of power.
Used of ranks of power ('эшелоны власти') and of troops drawn up one behind the other.

Examples

На станции стоял длинный товарный эшелон.
A long freight train was standing at the station.
Эшелон с солдатами тронулся на рассвете.
The troop train carrying the soldiers set off at dawn.
Первый эшелон войск уже перешёл границу.
The first echelon of troops had already crossed the border.