Arabic to English Other Idioms / Maxims / Sayings News/media language

I am translating an Egyptian newspaper published on January 28, 1966 for my blog. The main headline reads:

ديجول يلتقط القفاز ويعلن: حل لغز بن بركة = إنهاء حرب الجزائر

(Possibly useful) context if you are not familiar: Mehdi Ben Barka was an Algerian nationalist leader possibly killed by Israeli agents in Paris in 1965 with collaboration from the Moroccan monarchy and French officers. The article says that De Gaulle announced he had submitted his police force to official investigation and would hold accountable any officers who committed crimes without his knowledge. (The headline refers to him comparing this investigation to ending the war in Algeria in 1962.)

My question is about the idiomatic phrase يلتقط القفاز . I guess it literally means "put the gloves on" and I can find it in many newspaper articles online, but I would have to read a lot to get enough context for me to glean the exact meaning. I have asked native speakers who have never heard the phrase before. Perhaps someone here could provide the answer?

Thank you in advance for your help!