This conflict had started since the time, when Ivan the 4th was dead(or poisoned), and after Russia tsar's generation had cutted. That time called The time of Troubles or Smuta literally "unclear".

Polish forces took that "lucky chance" and tried to subdue Russia lands to Poland. Polish intervention come to Moscow, corrupt the some of nobles(that was non loyal even in Ivan the 4th ruling, that is why he was carrying out his bloody reforms Oprichnina - Russian anti-corruption, anti-separatists repressions). They sat in Kremlin and ruled for there interests. It was made under theatre performance of the survived prince - Dmitry, but he was a fake one, and his naming was False Dmitry.

But then, some Russian nobles had treaty with some German nobles, and it was supported new Russian dynasty - Romanovs. Romanovs took only German princess, and share Europe with German nations. Especially Poland, because of the upper causes.

Livonia and Poland after Romanovs rise had fall, thought, that was very strong empire in middle age, but that trying to hold Moscow was the overstrain for the Livonia-Poland geopolitics. 4 Poland Russian-German shars was followed in next 300 years.

Poland up only one time, again when it was troubles, in 1919 they took Ukraine and Belorussian parts. But they have to get them back again in 1939. If you are thinking that Poland was sinless in 1939 you have to read this.

Churchill said about Poland "hyena appetite" for such behavior.

Poland cults the ambitions to become the west European center state, atleast military monopolist. But they didn't got a lot, when Russia was in power. Recently Russia was weak again, that is why Poland politically is aggressive to Russia.

This conflict had started since the time, when Ivan the 4th was dead(or poisoned), and after Russia tsar's generation had cutted. That time called The time of Troubles or Smuta literally "unclear".

Polish forces took that "lucky chance" and tried to subdue Russia lands to Poland. Polish intervention come to Moscow, corrupt the some of nobles(that was non loyal even in Ivan the 4th ruling, that is why he was carrying out his bloody reforms Oprichnina - Russian anti-corruption, anti-separatists repressions). They sat in Kremlin and ruled for there interests. It was made under theatre performance of the survived prince - Dmitry, but he was a fake one, and his naming was False Dmitry.

But then, some Russian nobles had treaty with some German nobles, and it was supported new Russian dynasty - Romanovs. Romanovs took only German princess, and share Europe with German nations. Especially Poland, because of the upper causes.

Livonia and Poland after Romanovs rise had fall, thought, that was very strong empire in middle age, but that trying to hold Moscow was the overstrain for the Livonia-Poland geopolitics. 4 Poland Russian-German shars was followed in next 300 years.

Poland up only one time, again when it was troubles, in 1919 they took Ukraine and Belorussian parts. But they have to get them back again in 1939. If you are thinking that Poland was sinless in 1939 you have to read this.

Churchill said about Poland "hyena appetite" for such behavior.

So, it can be concluded, that Poland is historically have a political ambitions to rise up Poland-Lithuania empire or domination in the Western EU region. But these tries historically was not able to be realised for a long term, bit only terminally unfair acts of aggression in trouble for nearest countries times. And ofc these unrealised ambitions are used for EU region occasionally destabilization till nowadays. And the Ukrainian conflict today is rooting to these historical problematics too.