ためらうことなく、その陰謀にたいする徹底した対抗処置をとった。の英語

Without a moment's hesitation, they took drastic action against the conspiracy.

The Congressman broke the news of conspiracy and made no bones about taking drastic action against it.

There is a rumor that the radicals are plotting against the government.

One of the conspirators has exposed the plot―laid bare the conspiracy.

The plot recoiled on the plotters.

I think most of them took part in the plot.

a bloodbath took place when the leaders of the plot surrendered

We found out their plot before they took their actions.

The secret plot was detected and the people involved were all arrested and executed.

a place that is a hotbed of corruption and wrongdoing

to stifle a plot in the cradle―stifle a plot in its birth

I think overestimating the people masterminding that conspiracy is exactly what they want.

nefariously involved in a conspiracy

To be frank, I think this 'conspiracy theory' is nonsense.

He was ignorant of the plot to assassinate him.

machinate a plot

According to the newspaper, he participated in the plot.

According to the newspaper he participated in the plot.

get an inkling of the scheme

a group of people who plan an evil deed together

form intrigues (for) in an underhand manner

to plot against―conspire against―intrigue against―a man

I saw through their plot at once.

He was caught in the net of conspiracy.

a conspiracy to overthrow the government

He seems to be implicated in the plot―involved in the plot―entangled in the plot.

he plotted vindictively against his former superiors

He is implicated in the plot.

He was arrested on a charge of complicity in a plot against the government.

a scheming person