Old soldiers in Taipei action during pensions warChina | Feb 28, 2018
An ex-colonel was in a critical condition after trying to scale a building and falling.
The protest was sparked by a plan to reform the military pension system - part of a wider cutback program that set off protests last year.
Legislators passed a bill in June, and one that targets military pensions is now up for discussion.
The protesters in action in Taipei included ex-general Wu Sz-huai, who fainted, and ex-colonel Miao Te-sheng, who fell from the second story of a building.
The presidential office responded to the strife with an appeal for calm, adding that reforms "are to ensure the pension system can develop sustainably."
Taiwan's pension schemes vary for occupations. And reforms include ending 18-percent interest on savings for former civil servants and military.