Most world leaders express hope, relief after Joe Biden's win

World leaders rushed to congratulate US president-elect Joe Biden, with many expressing hopes of cooperation in facing future challenges following four volatile years of diplomacy with Donald Trump.

. While Trump refused to accept the results of the election, many world leaders clearly backed the announcement that Biden had won with running mate Kamala Harris:

. "Congratulations!" said Chancellor Angela Merkel. "I wish luck and success from the bottom of my heart.

. "Our transatlantic friendship is irreplaceable if we want to overcome the great challenges of our times," she said in a tweet issued by a government spokesman.

. French President Emmanuel Macron tweeted: "The Americans have chosen their President. Congratulations @JoeBiden and @KamalaHarris! We have a lot to do to overcome today's challenges. Let's work together!"

. British Prime Minister Boris Johnson congratulated Biden "on his election as President of the United States and Kamala Harris on her historic achievement.

. "The US is our most important ally and I look forward to working closely together on our shared priorities, from climate change to trade and security."

. Ireland's Prime Minister Micheal Martin was one of the first to take to Twitter, tweeting: "I want to congratulate the new President Elect of the USA @JoeBiden. Joe Biden has been a true friend of this nation throughout his life and I look forward to working with him in the years ahead. I also look forward to welcoming him back home when the circumstances allow!"

. Prime Minister Kyriakos Mitsotakis tweeted: "Congratulations to US President-Elect @JoeBiden. Joe Biden has been a true friend of Greece and I'm certain that under his presidency the relationship between our countries will grow even stronger."

. Prime Minister Giuseppe Conte tweeted: "We are ready to work with the President-elect @JoeBiden to make the transatlantic relationship stronger. The US can count on Italy as a solid Ally and a strategic partner."

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. Prime Minister Pedro Sanchez tweeted: "Congratulations @JoeBiden and @KamalaHarris. We wish you good luck and all the best. We are looking forward to cooperating with you to tackle the challenges ahead of us."

. Israel's Prime Minister Benjamin Netanyahu, a close Trump ally, called Biden a "great friend of Israel", congratulating him and Harris on their victory.

. He tweeted: "I look forward to working with both of you to further strengthen the special alliance between the US and Israel."

. President Barham Saleh extended "warmest congratulations" to Biden, describing him as "a friend and trusted partner in the cause of building a better Iraq. We look forward to working to achieve our common goals and strengthening peace and stability in the entire Middle East".

. Iranian President Hassan Rouhani said in a tweet that Biden's victory was a chance for the US to "compensate for its previous mistakes and return to the path of adherence to international commitments".

. President Abdel Fattah al-Sisi said Egypt, the most populous Arab country, looked forward to "strengthening strategic bilateral ties between Egypt and the US in the interest of both countries and peoples".

. The King of Jordan, Abdullah II, tweeted his congratulations to the pair: "I look forward to working with you on further advancing the solid historic partnership between Jordan and the United States, in the interest of our shared objectives of peace, stability and prosperity."

. Palestinian President Mahmud Abbas called on Biden to "strengthen" relations between the Palestinians and Washington, which collapsed under Trump.

. The Taliban said they expected Biden to respect a deal agreed with Trump, noting: "We signed the agreement with the American government, not a person."

. Canada's Prime Minister Justin Trudeau said: "I look forward to working with President-elect Biden, Vice President-elect Harris, their administration, and the United States Congress as we tackle the world's greatest challenges together."

. Cuban President Miguel Diaz-Canel hailed a new direction chosen by US voters and said: "We believe in the possibility of having a constructive bilateral relation while respecting our differences."

. Australian Prime Minister Scott Morrison wished Biden and Harris "every success".

. "The Australia-US Alliance is deep and enduring, and built on shared values. I look forward to working with you closely as we face the world's many challenges together," he said on Twitter.

. New Zealand Prime Minister Jacinda Ardern, a popular leader who had verbally jousted with Trump, congratulated Biden and Harris in a tweet focused on cooperation.

. "With so many issues facing the international community, your message of unity is one we share. New Zealand looks forward to working with you both!"

. Indonesian President Joko Widodo expressed his "warmest congratulations" to Biden and Harris. He said: "The huge turnout is a reflection of the hope placed on democracy."

. Prime Minister Lee Hsien Loong offered congratulations, reminding Biden of their previous work together while he was vice president and stating he hoped bilateral relations would deepen.

. "You can continue to count on Singapore as a friend and partner," Lee said.

. Japanese Prime Minister Yoshihide Suga wrote on Twitter: "Warm congratulations to @JoeBiden and @KamalaHarris. I look forward to working with you to further strengthen the Japan-US Alliance and ensure peace, freedom, and prosperity in the Indo-Pacific region and beyond."

. South Korean President Moon Jae-in tweeted: "Congratulations to @JoeBiden and @KamalaHarris. Our alliance is strong and the bond between our two countries is rock-solid. I very much look forward to working with you for our shared values."

. Thai PM Prayut Chan-O-Cha published an open letter congratulating Biden and Harris, stating he wished the pair success and that he was looking forward to working closely with the new administration.

. Indian Prime Minister Narendra Modi described Biden's win as "spectacular" while highlighting Harris's Indian heritage.

. "Your success is pathbreaking, and a matter of immense pride not just for your chittis, but also for all Indian-Americans," Modi said in a tweet to Harris.

. "Chitti" is a Tamil term of endearment for the younger sisters of one's mother, which Harris used in her acceptance of the Democratic nomination for vice president.

. Afghan President Ashraf Ghani said ties between Kabul and Washington would deepen over counterterrorism as he congratulated Biden.

. "Afghanistan looks forward to continuing/deepening our multilayered strategic partnership w/ the United States -- our foundational partner -- including in counterterrorism & bringing peace to Afghanistan," Ghani wrote on Twitter.

. President Muhammadu Buhari, leader of Africa's most populous nation Nigeria, called for "greater engagement".

. He said he looked forward to "enhanced cooperation between Nigeria and the United States, especially at economic, diplomatic and political levels, including especially on the war against terrorism".

. President Cyril Ramaphosa said on Twitter his government looked forward to "working with you and deepening our bonds of friendship and cooperation".

. Mexican President Andres Manuel Lopez Obrador, for his part, said it was too soon to congratulate Biden and he would wait for "all legal issues" in the US election to be resolved.

. "We don't want to be imprudent. We don't want to act lightly and we want to respect people's self-determination and rights," Lopez Obrador, who has had good relations with Trump, told reporters.

. NATO chief Jens Stoltenberg described Biden as a "strong supporter of our Alliance".

. Stoltenberg, who often had to adapt to Trump making unexpected announcements about US troop drawdowns from NATO deployments, said in a tweet he looked forward to working with Biden.

. "A strong NATO is good for both North America and Europe," he said.

. World leaders rushed to congratulate US president-elect Joe Biden, with many expressing hopes of cooperation in facing future challenges following four volatile years of diplomacy with Donald Trump.