The 68-year-old entrepreneur has said he hopes to raise $100 million over the next 60 days, according to the event's website. Maduro is currently not allowing aid into the country. Maduro has called the effort to bring truckloads of supplies into Venezuela a pretext for a military invasion of the country and so far the armed forces have followed his orders to block the supplies at the border. (MORE: Richard Branson: 'I don't deserve to be alive today') "We must break this impasse or many Venezuelans will be on the verge of starvation and death," Branson said in a post on Twitter. Branson launched Virgin Records in 1972, Virgin Atlantic Airways in 1984 and expanded into telecommunications in the 1990s and 2000s.