Beijing should allow former Tiananmen Square activists living in exile overseas to resettle on the mainland as it had been almost 20 years since the crackdown on the 1989 pro-democracy movement, a newly formed Hong Kong-based campaign said. The Homecoming campaign, the first organised operation since the early 1990s to lobby for the dissidents' return, is also hoping prominent Tiananmen activist Wang Dan can visit Hong Kong to attend a seminar on July 5. The Reverend Chu Yiu-ming, who heads the campaign, said it would be the last chance for some ageing dissidents to go home before they died without seeing friends and family. 'It has been almost 20 years since 1989 and many of the exiled dissidents are either old or infirm, and some of them are very poor,' Mr Chu said. 'What can they do to threaten China? Their only wish is to go home and see for themselves the changes in the motherland. 'Returning home is the right of every Chinese citizen. It is our hope that Beijing would open itself and embrace the patriots in exile, so that everyone can see the present Chinese leadership is liberal-minded.' Registered as a society in Hong Kong, the campaign has been contacting more than a dozen dissidents in exile who wish to return to the mainland. It is raising funds for a series of activities aimed at helping to bring the dissidents' cases to the attention of leaders in Beijing and the international community. The campaign is planning to conduct and publish a series of interviews with dissidents in the US in coming months, and others who are in exile in Europe later this year, to raise awareness of their plight. As a gesture to show that the homecoming efforts of dissidents are personal rather than political, the campaign along with other Christian groups, has invited Mr Wang to speak at a seminar in Hong Kong. 'We have invited him to speak about his life at Harvard University and since it is after June 4 we hope there will be no problem,' Mr Chu said. Mr Wang, one of the main student leaders during the Tiananmen Square protests, has been living in exile for the past decade in the United States, where he has just completed a doctorate in history. The Hong Kong groups have invited Mr Wang to the July 5 event. He has said he will apply for a visa to visit the city next month despite a previous application to visit in 2004 being rejected. The Hong Kong groups will hold a prayer session on May 23, when Mr Wang and other dissidents in exile will begin a hunger strike in New York. Mr Chu said fellow organisers first realised the homecoming issue was pressing when dissident writer Liu Binyan died in the US in 2005, without realising his ambition to return to the mainland after being in exile for more than 20 years.