He served in Caucasus front in WWI, after Armistice of Mudros he joined Turkish National Movement and attended Sivas Congress.

Army General Toydemir had been assigned by President İnönü to visit Nazi Germany in an official trip.

He examined Tiger I tanks with Turkish officers just before Operation Citadel and shared a cigar with Erich von Manstein.

He met Adolf Hitler, Wilhelm Keitel and Alfred Jodl, and during the meeting Hitler stated that Turkey, being the first ones to defy postwar treaties, inspired their movement and compared the well-preparedness of Atlantic wall to Çatalca line (Çatalca line was built to stop any probable German invasion.).

After he came back to Turkey, General Toydemir wrote a report to President İnönü about Germany's military situation.