The detention of two Canadians by China reached one year Tuesday and China used the occasion to announce that the pair will face prosecution on charges of spying.

Michael Kovrig will be tried for “covertly gathering state secrets and intelligence for foreign forces,” while Michael Spavor will be prosecuted for “stealing and illegally providing state secrets to foreign forces,” the Chinese said Tuesday.

The arrests were widely seen as retaliation for Canada’s detention of senior Huawei executive Meng Wanzhou last December at the request of the Americans, who said she contravened U.S. sanctions on Iran.

Meng, who has

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