A nationwide string of protests against universities' links with arms companies has involved peaceful action on campuses across Britain, backed by the Campaign Against Arms Trade.

The National Union of Students (NUS) and the Universities and Colleges Christian Fellowship (UCCF) today launched joint guidance to help students' unions and Christian unions manage good local relationships. The guidance comes after tensions between these groups in 2006.

The Student Christian Movement, a long-established organisation on university and college campuses across the UK, has joined calls for a positive, mediatory approach to disagreements between evangelical Christian Unions and Students Unions.

More questions are being raised about the agendas of Evangelical lobby and campaign groups in universities after it emerged that Exeter University's Evangelical Christian Union initiated legal action against its own students' union and university - although it was aware that the sanctions they were protesting against were no longer in force.