A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
 | This article needs additional citations for verification. (February 2024) |
This is a chronological list of wars in which Poland or its predecessor states of took an active part, extending from the reign of Mieszko I (960–992) to the present. This list does not include peacekeeping operations (such as UNPROFOR, UNTAES or UNMOP), humanitarian missions or training missions supported by the Polish Armed Forces.
The list gives the name, the date, the Polish allies and enemies, and the result of these conflicts following this legend:
- Polish victory
- Polish defeat
- Another result
- Internal conflict
- Ongoing conflict
Piast Poland (960–1138)
During the Middle Ages, Poland sought to incorporate other fellow West Slavic peoples under the rule of the Polan dukes, such as Mieszko I, Boleslaw I Chrobry and their descendants, and then defend the lands conquered in the west from the Holy Roman Empire. In the east and south it struggled with Ruthenia, Bohemia and Tatar raiders. In the north-east, it encountered intermittent Lithuanian and Prussian raids.
| Date | Conflict | Belligerents 1 | Belligerents 2 | Leaders | Events | Result |
|---|---|---|---|---|---|---|
| 963–
967 |
Polish-Veletian War |  Duchy of Poland Duchy of Bohemia (967)
|
VeletiWolinians (967) | Victory | ||
| 988–
990 |
Polish-Bohemian War | Duchy of Poland.svg){kind=small} Holy Roman Empire
|
Duchy of Bohemia
|
Victory | ||
| 1003–
1018 |
German-Polish War | Duchy of Poland
|
Holy Roman Empire
|
Victory | ||
| 1028–
1031 |
German-Polish War | Kingdom of Poland
|
Holy Roman Empire Duchy of Bohemia
|
Defeat | ||
| 1093–
1100 |
Civil War in Poland[1] | Władysław I Herman
|
Zbigniew of Poland
|
Internal conflict | ||
| 1103–
1108 |
Civil War in Poland[2]: 248–284 [better source needed] | Bolesław III Wrymouth
|
Zbigniew of Poland
|
Internal conflict |
Feudal fragmentation (1138–1320)
In 1138, after the death of Bolesław III Wrymouth, Poland was divided into districts ruled by local princes. This began a period of feudal fragmentation that lasted for more than 187 years during which Poland was severely weakened due to incessant internal conflicts. The feudal fragmentation ended in 1320 during the reign of Władyslaw I Lokietek.
Reunited Kingdom of Poland (1320–1385)
In 1320, after the end of the feudal fragmentation, during the reign of Władyslaw I Łokietek and his son Casimir III the Great, Poland experienced a period of strong economic development, this period also increased migration to Poland especially of Germans and Jews. The period ended after the death of Casimir the Great and the assumption of the Polish throne by Louis I.
| Date | Conflict | Belligerents 1 | Belligerents 2 | Leaders | Events | Result |
|---|---|---|---|---|---|---|
| 1326–
1332 |
Polish-Teutonic War | Kingdom of Poland
|
 Teutonic Knights
|
Indecisive | ||
| 1340–
1392 |
Galicia-Volhynia Wars | Kingdom of Poland
|
 Kingdom of Galicia–Volhynia
|
Victory | ||
| 1345–
1348 |
Polish-Czech War | Kingdom of Poland
|
 Kingdom of Bohemia
|
Indecisive | ||
| 1375–
1377 |
Hungarian-Ottoman War | Kingdom of Poland
|
 Ottoman Empire
|
Victory | ||
| 1381–
1385 |
Greater Poland Civil War |  Grzymała
|
 Nałęcz
|
Internal conflict |
.svg){kind=small}
.svg){kind=icon}
Jagiellon Poland (1385–1569)
For much of its early history as a Christian state, Poland had to contend with Pomeranians, Prussians, Lithuanians and other Baltic peoples in continuous border wars without clear results or end in sight. After the Teutonic Order conquered and assimilated the Prussians, it began incursions into both Polish and Lithuanian territories. This represented a far greater threat to both Poland and Lithuania, and the two countries united in a defensive alliance by the crowning of the Lithuanian Duke Jogaila as King of Poland (as Władysław II) which led to a major confrontation at the Battle of Grunwald in 1410 and subsequent wars until 1525, when the Order became a vassal to the Polish Crown.
