On the campaign trail he promised to withdraw from an international accord, "struck" last year in Paris, to fight global warming. This week, as president-elect, Mr Trump said he has an “open mind” on the Paris deal and that there is “some connectivity” between human activity and climate change.
I've looked it up the dictionary but couldn't find anything that fit the meaning in the context. And I know it's the past tense and the past participle of "strike".