Complex sentence: He proved himself in the battlefield during the wars against the Turks in 1876 and 1877; however, on several occasions he was severely reprimanded and even briefly put in custody for using "inappropriate language" in addressing senior officers.
Split into simpler sentences: He proved himself in the battlefield during the wars against the Turks in 1876 and 1877. On several occasions, he was severely reprimanded and even briefly put in custody for using "inappropriate language" to senior officers.