Which territory was that?
For example:
"On its eastern frontier Germany was forced to cede to the newly independent Poland:
The province of West Prussia, thereby granting Poland access to the Baltic Sea (without having to pass through Germany as previously), while Germany lost its land access to the province of East Prussia.
Much of the province of Posen, which, like West Prussia, had been acquired by Prussia in the 18th-century partitions of Poland, was likewise granted to the restored Polish state.
The eastern part of Upper Silesia to Poland (area 3,214,km², 965,000 inhabitants), after a plebiscite is held.
A significant portion of coal-rich and industrially developed Upper Silesia was also transferred from Germany to Poland, as the result of a later plebiscite (area 53,800 km², 4,224,000 inhabitants (1931), including 510 km² and 26,000 inhabitants from Upper Silesia).
From the eastern part of West Prussia and the southern part of East Prussia, a small area to Poland.
The area of Soldau in East Prussia, (railway station on the Warsaw-Danzig route) ceded to Poland (area 492 km²)"
