Two Zimbabwean presidential candidate registered for first national election of the post-Mugabe era on Thursday.

President Emmerson Mnangagwa and his main rival Nelson Chamisa registered on Thursday for Zimbabwe’s first national elections of the post-Mugabe era, with hoping to rally younger voters against the generation that won independence.

Mnangagwa and Chamisa, are both campaigning on a pledge to revive an economy crippled by a legacy of often violent seizures of land from white commercial farmers and a black economic empowerment drive that targeted foreign-owned businesses.

The ruling ZANU-PF says Zimbabwe is at a critical stage of transition requiring an experienced politician like Mnangagwa.

Chamisa, the 40-year-old leader of the opposition Movement for Democratic Change (MDC), says the president is equally to blame for the country’s economic troubles, since he served in each of Mugabe’s governments since independence in 1980.

Joice Mujuru, a Mugabe deputy for 10 years before she was ousted from the ruling party in 2014, and Thokozani Khupe, who leads a splinter MDC faction after falling out with Chamisa, also entered the presidential race.

Western governments and investors will be closely watching the July 30 presidential and parliamentary ballots, for which monitors got clearance to deploy for the first time since 2002.

If no single presidential candidate wins an absolute majority next month, a run-off is scheduled for September.