US President Biden says he will run for re-election in 2024
Both Mr Biden and Vice-President Kamala Harris have said they will run together.
Both Mr Biden and Vice-President Kamala Harris have said they will run together.
Deepening engagement will contribute to global food security, diplomats say.
The Chinese scientific community will not stand for this, and the international community will not accept this", the director of China CDC said.
Chun Woo-won's arrest has exposed the reality of privileged students in the US with easy access to marijuana who later turn to other drugs, a student claims.
The exercises are designed to prepare for a contingency on the Korean Peninsula.
A Pentagon report estimated that China would likely possess a stockpile of about 1,500 nuclear warheads by 2035.
Expectations are high ahead of the summit for the two countries to forge a stronger-than-ever alliance to deter North Korea's provocations and continued threats of nuclear attacks.
After criticism that the first summit was too US-focused, Biden tapped leaders on each continent - from South Korea, Zambia, Costa Rica and The Netherlands - as co-hosts.
The decision had been challenging, with Pakistan weighing the benefits of participation against the potential risks to its diplomatic relationships.
The announcement is the latest highlight of an impasse in ties as North Korea makes nuclear threats in response to annual military exercises by South Korea and the US.