Education
Following company command, Rossmanith attended the Command and General and Staff Officers" Course in Hamburg, from which he graduated in 1987.
Following company command, Rossmanith attended the Command and General and Staff Officers" Course in Hamburg, from which he graduated in 1987.
Rossmanith joined the Army in 1973, joining a light infantry unit based in Munich. After attending studies in electrical engineering at Bundeswehr University of Munich, he became commanding officer of Light Infantry Battalion 112 in 1977, stationed in Regen, Bavaria. Between 1981 and 1985, Rossmanith served as a company commander, taking charge of the 2nd and later the 4th companies of the Panzergrenadier Battalion, again stationed in Regen.
He served in Brussels, Belgium, on his first assignment to North Atlantic Treaty Organization in 1987, serving as Desk Officer for Politico Military Affairs to the German Military Representative to the Military Committee.
Returning to Germany, he served with Armoured Brigade 6, stationed in Hofgeismar, Hesse, in 1989, before being appointed Chief of Staff for 4 Panzergrenadier Division, based in Erfurt, Thuringia. He took up his second assignment to North Atlantic Treaty Organization in 1991 and served as a branch chief at Headquarters, Allied Forces Baltic Approaches (BALTAP), in Karup Municipality, Denmark, where he served until 1993.
He went on to serve in a staff position at the Federal Ministry of Defence in a variety of staff positions, before taking command of Panzergrenadier Battalion 212 in Augustdorf, North Rhine-Westphalia, between 1995 and 1997. In early 1997, he served with the German National Contingent of the North Atlantic Treaty Organization-led Stabilisation Force in the Balkans, after which he served with the German 7 Armoured Division, based in Düsseldorf, until 1999.
Between October 1999 and May 2003, Rossmanith held a variety of staff posts, after which he took command of 9 Armoured Brigade, based in Münster, and deployed for a second tour in the Balkans, commanding Multinational Brigade Southwest, part of the Kosovo Force.
He held the command until 2005, when he was appointed Deputy Director, Policy Planning and Advisory Staff at the Ministry of Defence, after which he became Chairman for Deployable Forces Coordination Group at Supreme Headquarters Allied Powers Europe (Supreme Headquarters Allied Powers in Europe) until 2009. He took command of the stability division of the International Security Assistance Force (ISAF), succeeding Matthieu Borsboom, in October 2010. In December 2012, Rossmanith took command of the Response Forces Operations Command (since July 2013: Multinational Joint Headquarters Ulm) in Ulm, Germany.