| clgo:causalties | - 3,000–7,000 killed or missing,
- 320,000–450,000 captured
- up to 20,000 wounded.ref|The figures do not take into account the approximately 2,500 prisoners of war executed in immediate reprisals or by anti-Polish Organization of Ukrainian Nationalists.|group=\"Note\"
|
| clgo:strength | - 450,000Polish Army.ref|The retreat from the Germans disrupted and weakened Polish Army units, making estimates of their strength problematic. Sanford estimated that approximately 450,000 troops found themselves in the line of the Soviet advance and offered only sporadic resistance.|group=\"Note\"
- 11+ brigades
- 3,300 aircraft
- 33+ divisions
- 4,736 tanks
- 4,959 guns
- 600,000–800,000 troops
- 20,000Border Protection Corps,ref|Increasing numbers of Border Protection Corps units, as well as Polish Army units stationed in the East during peacetime, were sent to the Polish-German border before or during the German invasion. The Border Protection Corps forces guarding the eastern border numbered approximately 20,000 men.|group=\"Note\"
|