UPDATE 1-Gates and Bloomberg create $4 million fund to fight Big Tobacco
* Fund to help poorer countries fight legal challenges
* Fund co-founder Bloomberg: "This is about sovereignty"
* Initial investment expected to grow with other donors (Adds statement from tobacco firm Philip Morris International)
By Kate Kelland, Health and Science Correspondent
LONDON, March 18 (Reuters) - Developing countries facing potentially pricey legal challenges from big tobacco firms are to get help from a new $4 million fund created by the philanthropists Bill Gates and Michael Bloomberg.
Announcing the creation of the anti-tobacco trade litigation fund on Wednesday, Bloomberg Philanthropies and the Bill & Melinda Gates Foundation said countries with limited resources should not be bullied into making bad health policy choices.
"This new fund is going to help countries who are sued by the tobacco industry fight back in court and win," Bloomberg, the former mayor of New York and one of the world's richest people, told reporters in a telebriefing.
Bloomberg and Gates, the billionaire co-founder of Microsoft , cited examples such as Uruguay, which since 2010 has been fighting a legal challenge by the cigarette maker Philip Morris International against the use of graphic health warnings on tobacco products.
Australia has also been fending off a World Trade Organization challenge and a legal challenge by Philip Morris against its anti-tobacco laws. Continuación...