London - British Prime Minister Gordon Brown Tuesday launched a diplomatic offensive to rally support for his plan to secure a co-ordinated world response to the global economic downturn at next week's G20 summit in London.

Brown's first stop will be at the European parliament in Strasbourg where he will give a speech praising the European Union's key contribution to the summit goal of forging a "new global deal," officials said.

However, there have been clear signs recently that major European countries are not prepared to back Brown's plan for further large-scale fiscal measures and government bailout packages to revive the global economy.

European states have instead shown greater enthusiasm for tighter regulations of international financial institutions and a clampdown on tax havens and bonus payments to executives, as well as doubling financial support for eastern Europe and enhancing the finances of the International Monetary Fund (IMF).

It was expected Tuesday that the differences of opinion between Brown and his European partners would become evident at the Strasbourg session, during which Commission President Jose Manuel Barroso is also due to speak.

From Strasbourg, Brown is expected to travel to New York for a meeting with United Nations (UN) Secretary General Ban-Ki-moon and then on to Latin America for talks in Chile and Brazil. (dpa)