Al Qaeda leader Osama bin Laden said his group reserved the right to fight the United States on its land and warned Washington and the world community against sending forces to Somalia, according to an Internet audio tape. "We will fight its (U.S.) soldiers on the land of Somalia ... and we reserve the right to punish it on its land and anywhere possible," said the speaker, who sounded like the Saudi-born militant. "We warn all of the countries in the world not to respond to America by sending international troops to Somalia," he said of the African nation where Islamists' power is rising.