US President Joe Biden signed a series of executive orders that would nullify decisions made by his predecessor Donald Trump, including a return to the Paris climate agreement, and spoke about a "very friendly" message that Trump left him.

After he was sworn in on Wednesday, and his arrival at the White House, he signed a series of executive orders, the first of which is related to tightening measures related to the Corona pandemic, such as the commitment to wearing masks, social distancing, and all measures determined by the authorities.

The second executive order Biden announced his signature concerns racial equality and social justice for US citizens, ensuring equality and access to aid.

Biden also signed an executive order returning his country to the Paris Climate Agreement and to the World Health Organization, from which Trump withdrew.

"We will fight climate change like we have not done here before," Biden told reporters in the Oval Office.

According to US media, Biden signed a decree to lift travel restrictions imposed by the Trump administration on some Muslim-majority countries.

Among the executive orders that Biden signs are canceling the Keystone XL pipeline permit and suspending the decision to build a wall on the border with Mexico, which the Pentagon has allocated more than $ 3 billion to build, at the request of former President Donald Trump.

Before heading to the White House, Biden signed 3 presidential decrees in Congress after he was sworn in as President of the United States of America.

According to the local CNN (CNN) network, Biden signed 3 presidential decrees in Congress related to ministerial appointments and subsidiary positions in the ministries.

"There is no time to waste when it comes to dealing with the crises we face," he said in his first tweet on his government account.

"For this reason, I will go today to the White House to work, take bold action, and provide immediate relief to American families," he added.

"Friendly" message

During the signing of executive orders at the White House, Biden announced that his predecessor Trump had left him in the Oval Office a "very friendly" message in keeping with his traditions.

"The president wrote a very friendly letter," Biden told reporters at the White House, but indicated that he would not talk about it before speaking to him.

As of Wednesday evening, it was not clear whether Trump would abide by the tradition between the outgoing president and his new successor and leave Biden a message in the Oval Office, because the Republican billionaire boycotted the inauguration and did not officially congratulate Biden on his election.

The outgoing US President Donald Trump left the White House in Washington, DC, after the end of his presidential term, heading to Andrews Air Force Base in the suburbs of Maryland, where a military farewell ceremony was held for him.

After the ceremony, Trump left Andrews Air Force Base for his Florida residence.

During the farewell party at Andrews Base, Trump gave a speech saying he would somehow come back.

He described the achievements of his administration as being amazing by all standards, as he put it, referring to the data of jobs and the levels reached by stock markets before the repercussions of the Corona pandemic began.

Joe Biden became the 46th President of the United States after he was sworn in at the inauguration ceremony in front of the Senate as is customary on January 20.

Kamala Harris also became the first female vice president in the United States after taking the oath at the inauguration.

Joe Biden - in his inauguration speech - made a call for unity, to confront what he described as political extremism, white supremacy and domestic terrorism, and warned that without unity there would be no peace.

The US President called on his citizens to start a new beginning after a period of bitterness and sharp division, and pledged to be president of all Americans.

Biden praised what he described as a day of history and hope and a moment of victory for democracy, and said that winning the elections is not a victory for a candidate but a victory for American democracy.

In a message abroad, Biden stressed that the United States will return to its upheaval alliances under Trump.

He pointed out that his administration will correct the mistakes of the past and pledged that America will return to lead the world and be a reliable partner.

Biden kicked off his inauguration on Wednesday by attending a Mass at a church in Washington, right after the outgoing President Donald Trump left the White House for his residence in Florida.

Biden arrived in Washington before the inauguration, amid tightening security measures in the capital to secure the ceremony, and upon his arrival, he participated with his deputy, Kamala Harris, in a ceremony at a memorial dedicated to honoring the victims of the emerging corona virus "Covid-19".

Before leaving his hometown in Delaware, Biden spoke - in a word - of his desire in his youth to fight for what he dreamed of, and said that there are great opportunities in his country, which is going through dark times.