- The first US combat troops arrive in Vietnam. By the end of the year, 190,000 American soldiers are in Vietnam.
- US marines land in the Dominican Republic as fighting persists between rebels and Dominican army (April 28).
- France withdraws its Atlantic fleet from NATO.
- Rhodesia unilaterally declares its independence from Britain (November 11).
- Population: 3.345 billion
- Nobel Peace Prize: UNICEF (United Nations Children's Fund)