Question: What was the ground force of the Austro-Hungarian Dual Monarchy that Jan Romer joined?
Sentence (from "Austro-Hungarian Army"): It was composed of three parts: the joint army ("Gemeinsame Armee ", "Common Army", recruited from all parts of the country), the Imperial Austrian Landwehr (recruited from Cisleithania), and the Royal Hungarian Honved (recruited from Transleithania).
Relevant evidence: No