Vietnam's prime minister is planning to visit the United States next month, a visit that would make him the first Vietnamese leader to travel to the United States since the end of the war between the two countries 30 years ago, The Associated Press reported. Prime Minister Phan Van Khai said arrangements were being made for him to visit Washington in June. "Thirty years have passed since the end of the war; this is the first ever visit by a leader of a unified Vietnam to the United States," Khai told reporters on the first day of a visit to Australia. "The purpose of my visit to the United States is to elevate our relationship to a higher plane in a new situation and we don't take into consideration as such the factor of China," he said.