out Etnocacerismo, primarily its anticolonial military doctrine and critical Indigenist analysis of Peruvian history and society. Humala was an unsuccessful candidate for Congress in the April 2006 elections running under the Go on Country - Social Integration Party. In 2011 his brother became president of Peru. In the last 2020 parliamentary elections, he joined the political party "Unión por el Perú" (UPP), a party that obtained a total of 13 seats out of 130 nationwide. Later that year, his partisans in Congress were among those who voted for the removal of former President Martín Vizcarra. In the recent 2021 president election, Humala entered into an alliance with the candidate for Free Peru (Perú Libre), Pedro Castillo. The alliance is conditioned on an early pardon from his prison sentence and his reinstatement into the military, potentially leading the armed forces. In return, he pledged to support Castillo and defend him from a potential military coup led by conservative generals with ties to the far right including former presidential candidate, Rafael "Porky" López Aliaga. Imprisonment In 2006, Antauro Humala published his book Etnonacionalismo: Izquierda y Globalidad (Visión Etnocacerista) in which he laid out the anticolonial and Neo-Incan ideology of his Etnocacerist movement. Topics discussed in the book are the anti-indigenous racism of Peruvian society, Etnocacerism's place compared to former Indigenists such as José Carlos Mariátegui and José María Arguedas, and a plan for a 2nd Inca Empire (Confederation with Bolivia and Ecuador). A second and third editions expanded on the first one and were published on 2007 and 2011, respectively. In September 2009 Antauro Humala was sentenced to 25 years in prison but, it was reduced to between 17 and 19 years in prison. On 14 May 2011, Antauro Humala filed a lawsuit against journalist Jaime Bayly claiming Bayly was "disseminating inaccurate versions" of the events in 2005. In 2012 the National Penitentiary Institute transferred him to the high-security Callao Naval Base for "repeated violations of penitentiary regulations". There he joined Abimael Guzmán and Vladimiro Montesinos. On 1 August 2012, his father Isaac Humala announced the publication of another book that Antauro had completed while imprisoned. Antauro's book De La Guerra Etnosanta A La Iglesia Tawantinsuyana laid out the need to create a neo-incan religion that would coalesce the many varied religious traditions, both classical and contemporary, of the Indigenous Andean peoples. In February 2015, a report from the Directorate of Criminalistics