![Czarek Sokolowski Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/b5952981218348a4a8acc2df2802120a/preview/preview.jpg?s=680x&wm=false)
Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)
![Czarek Sokolowski Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/378dd472e09a48d4aded523dee4987bf/preview/preview.jpg?s=680x&wm=false)
Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)
![Czarek Sokolowski A Polish soldier at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/79c193578075474981bf3f1c745628a8/preview/preview.jpg?s=680x&wm=false)
A Polish soldier at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)
![Czarek Sokolowski Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/3530ba3773fe4c15980217a591c0f7c5/preview/preview.jpg?s=680x&wm=false)
Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)
![Czarek Sokolowski Poland's Prime Minister Donald Tusk speaks to reporters in Dabrowka, Poland, during a visit to Poland's border with Russia on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/ab1f3a34f03e4fbfaa6edaceef147ebc/preview/preview.jpg?s=680x&wm=false)
Poland's Prime Minister Donald Tusk speaks to reporters in Dabrowka, Poland, during a visit to Poland's border with Russia on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)
![Czarek Sokolowski Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/97bfa2369ef742ddb719299838cef559/preview/preview.jpg?s=680x&wm=false)
Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)
![Czarek Sokolowski Poland's Prime Minister Donald Tusk speaks to reporters in Dabrowka, Poland, during a visit to Poland's border with Russia on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/a05f1c5fd3514f569aee18054cc5a6e9/preview/preview.jpg?s=680x&wm=false)
Poland's Prime Minister Donald Tusk speaks to reporters in Dabrowka, Poland, during a visit to Poland's border with Russia on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)
![Czarek Sokolowski A Polish soldier at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/634b2e5325194639abd4806af2491403/preview/preview.jpg?s=680x&wm=false)
A Polish soldier at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)
![Czarek Sokolowski A Polish soldier at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/703f17254bec43fc8240183a93b38901/preview/preview.jpg?s=680x&wm=false)
A Polish soldier at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)
![Czarek Sokolowski Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/e54ddd3c59024d99866207fe3ce177d7/preview/preview.jpg?s=680x&wm=false)
Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)
![Czarek Sokolowski Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/425d7e7a1b9643c584f344f2fbe3267a/preview/preview.jpg?s=680x&wm=false)
Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)
![Czarek Sokolowski A Polish soldier at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/00c4095a637d4d779e38f721c7e8a22c/preview/preview.jpg?s=680x&wm=false)
A Polish soldier at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)
![Czarek Sokolowski Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)](https://mapi.associatedpress.com/v2/items/bd9b965817c94074959284271a407914/preview/preview.jpg?s=680x&wm=false)
Concrete barriers that are part of Poland's East Shield fortification at Poland's border with Russia in Dabrowka, Poland, on Saturday Nov. 30, 2024. (AP Photo/Czarek Sokolowski)