The hard-hit United States has passed a hopeful milestone as half its adults have had at least one Covid vaccine dose and from Monday all its over 18s will be eligible to get their shot.

The United States and China are "committed to cooperating" on the pressing issue of climate change, the two sides said Saturday, issuing the pledge days ahead of a key summit hosted by President Joe Biden.

Iran's foreign minister warned Tuesday that "acts of sabotage" and sanctions will give the United States no extra leverage in talks on reviving a troubled 2015 nuclear deal.

The United States, South Korea and Japan began a day of talks on Friday to discuss President Joe Biden's long-awaited review of North Korea policy and other pressing concerns, including a shortage of semi-conductor chips.

The United States on Wednesday ordered the departure of non-essential diplomats from Myanmar, amid growing violence following the military coup to oust civilian leader Aung San Suu Kyi.

Iran must refrain from any provocation as Washington steps up efforts to salvage the 2015 nuclear deal with Tehran, the head of US forces in the Middle East told AFP.

The US has moved to delist Yemen's Houthi rebels as a terrorist organization, removing a block that humanitarian groups said jeopardized crucial aid as the country's warring sides cautiously welcomed a push for peace by President Joe Biden.

The US ambassador to the United Nations, Kelly Craft, will visit Taiwan next week for meetings with senior Taiwanese leaders, Taiwan's government and the US mission to the UN said, prompting China to warn they were playing with fire.

The new variant of coronavirus was detected for the first time Tuesday in the United States and Latin America as President-elect Joe Biden vowed to significantly ramp up the vaccination drive.

The United States said it authorized the use of Pfizer Inc's Covid-19 vaccine on Friday, with the first inoculations expected within days, marking a turning point in a country where the pandemic has killed more than 295,000 people.

The United States notched a record number of coronavirus cases in 24 hours for the third day running, as it was reported that Britain's Queen Elizabeth II will get a vaccine within weeks

In the last couple of decades, ever since the George W Bush administration, we have been witnessing trends in US politics which flow from one end of the spectrum to the other.