Venezuela's Guaido Calls for 'Largest March in History' in Uprising Effort

Venezuelans were expected to take to the streets on Wednesday for what opposition leader Juan Guaido pledged would be the "largest march" in the country's history, a day after he called for the military to oust President Nicolas Maduro.

In his boldest effort yet to gain the support of the armed forces, Guaido appeared early Tuesday outside a Caracas air force base with dozens of National Guard members. That triggered a day of violent protests, leaving more than 100 injured, but without any concrete signs of defection from the armed...