He became friends with Kuzman Josifovski - Pitu, and his friendship with Strašo Pindžur also dates back to those days.

There he organized the Provincial Committee and together with Strašo Pindžur prepared the printing of the party materials, the newspaper "Iskra".

A few days after the attack of Nazi Germany, he and Strašo left for Kavadarci, and then Mirče moved to Prilep.

In meetings with leading figures and in letters, Mirče criticized the inaction of the Provincial Committee, which had an impact on the change in its composition in the spring of 1942.

Together with Kuzman Josifovski - Pitu, he advocates the application of the course for armed struggle and approaches the formation of several new partisan detachments in Macedonia.

However, in a letter from August 9, 1942 to the Central Committee of the Yugoslav Communist Party, he admitted that the Macedonian people had not yet outlived their illusions of liberation and continued to trust the Bulgarian authorities.

Together with Strašo Pindžur in September 1942, they went to visit the partisan detachments and party organizations in Veles and Prilep region.

Direct testimonies about the torture and murder of Mirče Acev are given by the head of the Bulgarian state security Ljubomir Jordanov.

It was at that time that agent Krum Pankov came and addressed Tsankov with the following words: "Mr. Chief, Mirče Acev is in a very difficult position, he is dying."

[5] After the news of the martyrdom of Mirče Acev and Strašo Pindžur, their comrades issued a leaflet-letter on the occasion of their murder, in which they expressed in detail their clear aspirations for the struggle for freedom of the Macedonian people.

[6] A small part of the letter describes the terror and the horrible image of their bodies:"...How many thousands of honest Macedonians "lost their hair" when they saw Mirče's body in the hospital morgue, and in Prilep when they buried him with severed fingers, nails and torn flesh from the bones.

While they hid the Pindzur's body, so that his broken bones could not be seen, because they have learned from Mirče's case, that they've became mortification in the eyes of the people.

[8] Today many objects, streets, schools including the army garrison in the city of Prilep, are named after him.