Various demonstrations are planned to show solidarity with Angolan activists, dubbed the “15+2 “, who were imprisoned on 20 June 2015 and later convicted  of preparing rebellion against the government.
The main protest, named the “Dia da Libertação “ (“Day of Liberation”), is set to take place in the capital Luanda on 20 June. Other events are organized in places around the world where the Angolan diaspora lives, with the goal of drawing the international community's attention to what protesters deem to be violations of freedom of expression and other human rights.
The 15+2 activists are the following,
according to Front Line Defenders :
- Domingos da Cruz
- Sedrick de Carvalho
- Luaty Beirão
- José Gomes Hata
- Nito Alves
- Afonso Matias “Mbanza Hamza”
- Hitler Samussuko
- Inocêncio Brito “Drux”
- Albano Bingo
- Fernando Tomás “Nicola”
- Nelson Dibango
- Arante Kivuvu
- Nuno Álvaro Dala
- Benedito Jeremias
- Osvaldo Caholo
- Rosa Conde
- Laurinda Gouveia
In June 2015, 13 activists were arrested, accused of preparing an attack on President José Eduardo dos Santos. They say, however, they had been simply  discussing peaceful methods of protesting repressive governments in a series  of meetings, particularly ideas from the book “From Dictatorship to Democracy” by Gene Sharp. They were subsequently joined by two others arrested, and two more were charged without pre-trial detention, giving rise to the name “15+2 ”.
Criticism  of the persecution has come from various rights organizations, including Amnesty  International, International Federation for Human Rights , and Liberdade Já (“Freedom  Now”). Nevertheless, their  long trial, delayed several times, resulted in March 2016 in prison sentences ranging from two to eight and a half years. In April 2016, an Amnesty International communique  asked members of the public to call for the release of these “prisoners of conscience”.
Supporters of the activists say their treatment at the hands of authorities goes against “rights enshrined in the Angolan Constitution.”
A Facebook page  for Luaty Beirão, one of the 15+2 activists who received a prison sentence, explained:
O caso dos 17 despertou a atenção de grande parte dos Angolanos e da comunidade internacional mas estes e outros ativistas continuam presos ou limitados na sua liberdade. Porque precisamos de todos os que querem contribuir para uma Angola melhor, livres de o poderem fazer, porque manifestar não é guerra, porque não há paz sem justiça e igualdade, porque acreditamos que juntos vamos virar uma página na história do nosso país, apelamos a que, em Angola e na diáspora, cada um, na sua língua, na sua localidade e na sua maneira, se associe.
The case of the 17 activists generated great attention from many Angolans and among the international community, but these and other activists are still detained or facing constraints on their freedom. Because we need everyone who wants to help build a better Angola to be free to do it, because demonstrations are not war, because there is no peace without justice and equality, because we believe that together we can turn a page in our country’s history, we call upon each of you, in Angola and the diaspora, in your language, in your city, and in your own way, to join us.
The organizers suggest various ways to show solidarity with the activists on the day which marks one year since their detentions:
Dia 20, porque todos somos reféns, vamos manifestar a nossa solidariedade com os presos e reclamar a nossa “Libertação” prometida há 40 anos! Como?
On 20 June, because we are all hostages, we will demonstrate our solidarity with the political prisoners and claim our “liberation”, as it was promised 40 years ago! How?
News outlet Central Angola 7311  reported that the movement began on Saturday, 18 June in Brussels and then spread to other European cities, including Lisbon (20 June) and Paris (21 June). On 19 and 20 June various gatherings were planned in Angola, and on 21 June, demonstrations are expected in Pretoria, South Africa.