JOHANNESBURG (AP) — South African police and army units held a parade Wednesday involving helicopters, K-9 dog units and officers on motorcycles in a show of force ahead of expected protests around this weekend’s Group of 20 world leaders summit in Johannesburg.

South Africa has deployed 3,500 extra police officers and put the army on standby under its National Joint Operational and Intelligence Structure — a body that brings police, army and intelligence services together under one command to provide security for major events.

Deputy national commissioner for policing Lt. Gen. Tebello Mosikili told reporters Tuesday that authorities were expecting protests in Johannesburg and other major South African cities.

“We will allow that right (to protest) to be exercised,” she said. “But withi

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