<page_title> Late Roman army </page_title> <section_title> Smaller Late Army </section_title> <table> <cell> Diocletian start rule 284 <row_header> Army corps </row_header> <row_header> Tiberius 24 </row_header> <row_header> Hadrian c. 130 </row_header> <row_header> S. Severus 211 </row_header> </cell> </table>
The "late" period of the Roman army begins with Diocletian in 284.