strike a blow at (something)

To do something that contributes to something's defeat or downfall. Health officials are hoping that this latest initiative will be able to strike a blow at obesity. Reports surfaced today that, if true, will strike a blow at the nascent campaign.

See also: blow, strike

See also:

another nail in the coffin
another nail in (one's) coffin
coffin
a nail in somebody's/something's coffin
do something for (someone or something)
do something for somebody/something
replace
be replaced by (someone or something)
be replaced with (someone or something)
be (not) a patch on

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