on the front line(s) of (something)

In the leading position of some effort or movement. For over a decade, our organization has been on the front line of advocating for those suffering from poverty. The esteemed neuroscientist has been on the front lines of researching treatments and cures for Alzheimer's disease.

See also: front, of, on

See also:

in the front line
in the front line(s) (of something)
make a martyr of (one)
martyr
there's no getting around (something)
there's no getting away from (something)
there's no getting away from it
there's no helping (something)
there's no help for (something)
there's no help for it

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