<Ul> <Li> Usurpation of Victorinus Junior (271) </Li> <Li> Junthungi Invasion (271) </Li> <Li> Domitianus II (271) </Li> <Li> Tetricus I & Tetricus II (271--274) </Li> <Li> Rebellion of Felicissimus (270s) </Li> <Li> Placentia (271) </Li> <Li> Fano (271) </Li> <Li> Pavia (271) </Li> <Li> Tyana (272) </Li> <Li> Immae (272) </Li> <Li> Emesa (272) </Li> <Li> Razing of Palmyra (273) </Li> <Li> Usurpation of Faustinus (c. 273) </Li> <Li> Châlons (274) </Li> </Ul> <Li> Usurpation of Victorinus Junior (271) </Li> <Li> Junthungi Invasion (271) </Li> <Li> Domitianus II (271) </Li>

Which of the following was the most common pattern to roman expansion