On the seventh day, 2,000 soldiers of the 21st 'Miller' and 31st 'Aldea' Marine Infantry Battalions and 1,500 Marines of the 41st 'Hurtado' Combat Support and 51st 'Olave' Logistic Support Battalions arrived to reinforce the police forces already in the coastal cities of Valparaíso, Viña del Mar and Talcahuano.<ref>[https://www.infodefensa.com/latam/2019/10/25/noticia-infanteria-marina-chile-despliega-estado-emergencia.html La Infantería de Marina de Chile despliega sus Kia ante el Estado de Emergencia]</ref>It was the first significant amphibious operation by marine troops since the mopping-up operations of Viña del Mar during the 1973 military coup. | On the seventh day, 2,000 soldiers of the 21st 'Miller' and 31st 'Aldea' Marine Infantry Battalions and 1,500 Marines of the 41st 'Hurtado' Combat Support and 51st 'Olave' Logistic Support Battalions arrived to reinforce the police forces already in the coastal cities of Valparaíso, Viña del Mar and Talcahuano.<ref>[https://www.infodefensa.com/latam/2019/10/25/noticia-infanteria-marina-chile-despliega-estado-emergencia.html La Infantería de Marina de Chile despliega sus Kia ante el Estado de Emergencia]</ref>It was the first significant amphibious operation by marine troops since the mopping-up operations of Viña del Mar during the 1973 military coup. |