Between 8–11 January 1968, the UK's Foreign Office Minister Goronwy Roberts visited the Trucial States and announced to its shocked rulers that the United Kingdom would abrogate its treaties with them and intended to withdraw from the area.
January 21, 1968: the 1968 Thule Air Base B-52 crash involved a United States Air Force (USAF) B-52 bomber. The aircraft was carrying four hydrogen bombs when a cabin fire forced the crew to abandon the aircraft. Six crew members ejected safely, but one who did not have an ejection seat was killed while trying to bail out. The bomber crashed onto sea ice in Greenland, causing the nuclear payload to rupture and disperse, which resulted in widespread radioactive contamination.
The Tet Offensive began on 30 January 1968, as over 100 cities were attacked by over 85,000 enemy troops, including assaults on key military installations, headquarters, and government buildings and offices, including the U.S. Embassy in Saigon.
With Hồ Chí Min's permission, the Việt Cộng planned a massive Tet Offensive that would commence on 31 January 1968, with the aim of taking much of the South by force and administering a heavy blow to the American military. The offensive was executed at great cost and with heavy casualties on Việt Cộng's political branches and armed forces.
The New Delhi Conference, held in February and March 1968, was a forum that allowed developing countries to reach an agreement on the basic principles of their development policies. The conference in New Delhi was an opportunity for schemes to be finally approved. The conference provided a major impetus in persuading the North to follow up UNCTAD I resolutions, in establishing generalized preferences. The target for private and official flows to LDCs was raised to 1% of the North's GNP, but the developed countries failed to commit themselves to achieve the target by a specific date. This has proven a continuing point of debate at UNCTAD conferences. The conference led to the International Sugar Agreement, which seeks to stabilize world sugar prices.