Joseph Thạo Tiến and 16 companions

The work of evangelization in Laos in the mid-20th century relied primarily on the commitment of two major missionary congregations: the Paris Foreign Missions Society (MEP) and the Missionary Oblates of Mary Immaculate (OMI). These priests, who came from France and Italy, worked under extremely difficult geographical and political conditions, particularly in the mountainous regions of the north and center of the country. Their pastoral action focused on the creation of small Christian communities, the education of children, the care of the sick, and the training of local catechists. The latter, coming from the various ethnic groups of the country (such as the Hmong or the Kmhmu'), played an indispensable role as translators, educators, and pillars of the faith within their own communities. Lay figures such as the Hmong catechist Paul Thoj Xyooj or the Kmhmu' lay leader Maisam Pho Inpèng sealed their missionary commitment by the gift of their lives alongside the priests they accompanied.

Due to the complex geopolitical situation in Laos, the process of recognizing the martyrdom was initially divided into two distinct causes: 1. The cause of Father Mario Borzaga (OMI) and his catechist Paul Thoj Xyooj, instructed at the diocesan level in Trento (Italy) starting on November 3, 2006. 2. The cause of Father Joseph Thao Tiên and his 14 companions (including missionaries from the MEP, the OMI, and several Laotian laypeople), opened in the diocese of Nantes (France) on June 10, 2008. After a meticulous examination of the files by the Congregation for the Causes of Saints in Rome, Pope Francis signed the decrees recognizing their martyrdom in odium fidei (in hatred of the faith): * May 5, 2015, for Mario Borzaga and Paul Thoj Xyooj. * June 5, 2015, for Joseph Thao Tiên and his 14 companions. These two causes were subsequently unified for the celebration of the beatification. No miracle was required for their beatification, as martyrdom exempts from this step in the canon law of the Catholic Church.

The solemn beatification of the seventeen martyrs of Laos was celebrated on December 11, 2016, in the Sacred Heart Cathedral of Vientiane, the capital of Laos. The ceremony was presided over by the Filipino Cardinal Orlando Quevedo, OMI, Archbishop of Cotabato, acting as special envoy of Pope Francis. This event took on an exceptional historical character, as it was the first major public Christian celebration authorized by the Laotian communist government since the seizure of power in 1975.

During the Angelus on December 11, 2016, Pope Francis hailed their "heroic fidelity to Christ," presenting it as an encouragement and an example for all missionaries and catechists. The common liturgical memorial of the group was set for December 16, the anniversary of the martyrdom of Father Jean Wauthier (OMI), who was killed in 1967.

The seventeen martyrs of Laos are today venerated as the "founding fathers" and the "ancestors of the faith" of the young Laotian Church. Their common spirituality rests on pastoral charity pushed to the point of supreme sacrifice, identification with Christ the Good Shepherd, and unwavering solidarity with local populations, particularly the poorest and marginalized ethnic minorities.

Their legacy remains alive within the small Catholic community of Laos (which represents approximately 1% of the population). Their testimony has allowed for increased public recognition of the local Church by civil authorities and continues to inspire indigenous priestly and religious vocations in a spirit of peace, reconciliation, and interreligious dialogue.