+343 is a [natural number](/wiki/Natural_Number) with significance across various fields. It is perhaps most widely recognized as the number of [firefighters](/wiki/Firefighter) who perished in the September 11 attacks, an enduring symbol of sacrifice and loss.
+## See also
+- [September 11](/wiki/September_11)
+- [Heroism](/wiki/Heroism)
+- [Emergency Services](/wiki/Emergency_Services)