The far-right parties in the European Parliament say they have mustered enough unity to form a political group under the leadership of France's National Front of Marine Le Pen.

Tuesday's move of the National front, the Dutch PVV of Geert Wilders, Austria's Freedom Party, Italy's Northern League and the Belgian Flemish Interest Party will give them more clout in the European Union legislature and add more of an anti-EU flavor to proceedings.

Most of the parties made gains in last year's European elections but until now had failed to find enough cohesion to form a united group.

Forming a recognized group gives the politicians more staff, right of initiative and access to funds.