This reply
Lin mark this message contains true information
originally written by Lin
民國46年後凡曾服役於金門、馬祖、東引、烏坵、東沙、南沙等地區及其各週邊島嶼之志願役及義務役官士兵,年資屆滿一(半)年,核發紀念章(累計核發三弓箭標為最高上限),並以補發乙次為限。

References

http://www.mnd.gov.tw/Publish.aspx?cnid=3155&p=74085&Title=國防消息&style=公告專區
中華民國國防部
曾服務金馬地區已退官兵補發紀念章作業事項

The content above by Cofacts message reporting chatbot and crowd-sourced fact-checking community is licensed under Creative Commons Attribution-ShareAlike 4.0 (CC BY-SA 4.0), the community name and the provenance link for each item shall be fully cited for further reproduction or redistribution.