This is Britain's third general election in four-and-a-half years. All major opinion polls suggest Prime Minister Boris Johnson will win, though pollsters got the 2016 referendum wrong.
The country now enters what once again is sure to be a bitter three-month political campaign that is expected to deliver very similar results.
Protesters have marched through central Algiers to demand Thursday's presidential election be cancelled.
Chief Justice Jayantha Jayasuriya administered the oath of office to Rajapaksa at the ancient Ruwanweli Seya Buddhist temple in northcentral Sri Lanka.
The Independent Electoral Commission of Nigeria says over 31,000 police had been deployed, as well as 87 gunboats, to prevent, or deal with, any electoral violence.
While voters may hope the election brings an end to Brexit uncertainty, they are likely to be disappointed. Britain faces more big decisions and looming deadlines.
The election result means President Evo Morales has won a fourth successive term despite the constitution he promulgated in 2009 limiting presidents to two mandates.
The election is widely expected to result in the ruling Frelimo party extending its decades-long rule over a nation that is set to become one of the world's leading gas exporters.
As civilians prepare to head to the polls on Saturday, few expect the presidential election will have much effect in bringing peace to the war-torn country.
Spanish Prime Minister Pedro Sanchez said his country needs to hold a new general election on November 10 after he was unable to win support from other parties for another term.
The winner will take office in January to replace corruption-tainted Jimmy Morales, who leaves with his popularity at rock bottom.
Polling stations open at 8 am (0600 GMT) and close at 8 pm, followed immediately by two exit polls. The focus will be on challenges in the Nordic country's welfare model and on two new far-right anti-immigrant parties.
Subscribe to our Youtube channel for all latest in-depth, on the ground reporting from around the world.
Copyright © 2019 TRT World.