1954 in the Vietnam War 5 April The National Security Council met again to consider U.S. intervention at Điện Biên Phủ. The Army, including Army Chief of Staff General Matthew Ridgway, was negative, stating that U.S. intervention would require 7 army divisions and heavy air support. 7 April President Eisenhower used the phrase "falling dominoes" in a press conference. This was the origin of the domino theory which postulated that if Vietnam became communist the other nearby states would soon follow. The domino theory was a prominent justification for the Vietnam War in the United States during the 1960s. 14 April Secretary of State John
Rings Around the World a techno "climactic ending". Sessions for "Rings Around the World" saw the band concentrating on arrangements, particularly their vocal harmonies. On previous albums individual members of the group would "keep singing until [they] came up with harmonies that worked" but, encouraged by co-producer Chris Shaw, for "Rings..." the band took the time to work out harmonies in advance. The group used piano, keyboards or "whatever was available" to give themselves a starting note before the five band members and staff at the recording studio began trying ideas out. Occasionally Auto-Tune was used to "re-pitch existing lines to see if different