On Monday, the next part in the legal battle that has been unfolding since the highly divisive plan was unveiled in 2022 began when the British government filed its appeal of a court judgement that ruled a programme to deport asylum seekers to Rwanda was unconstitutional.The conservative administration in Britain claims this policy would discourage the perilous journeys undertaken by thousands of asylum seekers over the English Channel by allowing them to deport anyone who arrive in the country in this manner to Rwanda.The proposal has been contested many times by rights groups, stopping any deportations that were set to take place, and is now being considered by the Supreme Court. As the fresh appeal begins, this is everything you need to know.