Danylo began his struggle against Polish control and cultural assimilation of this area when he was 17 years old.

Lithuania did not recognize Polish control over Vilnius even de facto.

For the next 19 years, the ethnically mixed Ternopol area remained in Polish control.

In 1438 the Teutonic Knights recognized Polish control of the region.

On 25 February 1947 the plant also passed to Polish control.

On 22 July 1945 it was handed over back to Polish control.

In mid-1945, 4.5 to 4.6 million Germans remained on the territories under Polish control.

Poles, meanwhile, believed that the town of Chełm and surrounding lands should be under Polish control.

Therefore, all historical parts of the province came under Polish control and the remaining German ethnic population was expelled by force.

The Lithuanians refused to recognize Polish control and continued to claim legal and moral rights to the region.