from november 2, 1923 until october 15, 1924, matuszewski was a listener of the iii training course at the wyższa szkoła wojenna in warsaw. after the completion of the course and obtaining of an officer's diploma at the general staff of the army, he was appointed military attaché in rome by the minister of military affairs. on december 1, 1924, he was named elder colonel as of august 15, 1924, and ranked nineteenth in the infantry officers' corps. he was moved to the reserves in 1926.