Jan. 5, 2019 — Venezuela's opposition-controlled congress installs 35-year-old Juan Guaidó as president of the legislature. Jan. 21 — Security forces put down a pre-dawn uprising by national guardsmen that triggered violent street protests. Feb. 23 — Venezuelan security forces fire tear gas on protesters trying to deliver aid from Colombia and Brazil, leaving two people dead and some 300 injured. March 18 — Colombia says about 1,000 members of the Venezuelan security forces have fled to Colombia since February, giving up weapons and uniforms as they abandon Maduro's government. March 27 — Russia's Foreign Ministry says that Russian military personnel have arrived in Venezuela to support Maduro.

Source: Fox News April 30, 2019 16:18 UTC