As on the other side ultra-Catholic and anti-royalist doctrines were closely associated Collaboration , so on the side of the two kings the principles of tolerance and royalism were united Cause_to_amalgamate .

Ever more diverging Chinese and Soviet strategic and political doctrines had increased Cause_change_of_position_on_a_scale the Sino-Soviet split of the mid-1950s .

The events of the Second Fitna intensified Cause_change_of_strength sectarian tendencies in Islam and various doctrines were developed Coming_to_be within what would later become the Sunni and Shi ' a sects of Islam .

The Tet Offensive of 1968 showed Presence the lack of progress with these doctrines as the NLF and PAVN mounted Connect large-scale urban offensives throughout 1968 , turning US domestic support against the war .