Teles served as Minister of War twice more: between 20 October 1904 and 27 December 1905 as part of another José Luciano de Castro government, and between 4 February 1908 and 14 May 1909 under the successive governments led by Francisco Joaquim Ferreira do Amaral, Artur Alberto de Campos Henriques, and himself. His second and third tenures as minister took place in a time of increasing political instability following the assassination of King Carlos I of Portugal by republicans.