Rubuta ci gaba don wannan sakin layi - Bayan samun 'yancin Pakistan a 1947, an ba Matinuddin aiki a matsayin mai harbi a cikin Rundunar Sojoji ta 7 na Royal Pakistan Artillery. Ya shiga cikin Yaƙin Kashmir na Farko, yana harbi wuraren abokan gaba a sashin Bhimber. Ya yi karatu a Kwalejin Sojojin Kanada da Kwalejin Ma'aikata a Kingston, ya kammala karatu a 1957. A tsawon shekaru 34 da ya yi yana aikin soja, Matinuddin ya rike mukamai daban-daban na ma'aikata, umarni da kuma umarni, gami da jagorantar sashen soji da daukar nauyin tsara ayyukan a matsayin Darakta Janar na Babban Jami'in. Ya shaida aikin a yakin Kashmir na biyu da yakin 1971
Ka yi haƙuri. A shekarar 1981, Matinuddin ya yi ritaya a matsayin Laftanar-Janar daga Sojojin Pakistan.