Why did the Turkish army enter Iraq?

Russia surrounds and isolates Turkey? This is the biggest joke I have heard this year.

The specific reason why Turkish troops entered Iraq is inconclusive internationally. I don't know how the following one knows. However, I guess there are mainly the following factors.

1 Inferred from the entry time, it IS to counter the Russian IS collusion accusation.

In order to take the opportunity to improve their international influence, especially in the Middle East.

3 Deal with Syria and Kurds who have always been hostile.

However, this is only a guess.