Biden has vowed to restore the JCPOA, but some of Trump's actions are irreversible.
As the U.S. Navy trains with Australia, India and Japan to "deter all who challenge a free and open Indo-Pacific," China hopes these drills are "conducive to regional peace and stability, instead of working in the opposite way."
Japan and South Korea, U.S. allies in the post-World War II era, do not share President Donald Trump's tough anti-China position and have sought better ties with the People's Republic, even as major challenges persist.
"We understand the fatigue in America, but withdrawal must be measured and strategic in order to preserve the gains that Americans and Afghans have sacrificed so much for," Afghan ambassador Roya Rahmani told Newsweek.
"Russia does not interfere in the U.S. elections and would work with any future president of the United States chosen by the American people," Petr Svirin, spokesperson for Moscow's embassy in Washington, tells Newsweek.
Both China and Russia say they'll work with whomever the U.S. voters choose, but the winner will have to come to terms with an emerging Beijing-Moscow consensus.
"Should anyone dare to stir up a conflict on the sea, the Chinese side will fight back resolutely to safeguard its national sovereignty and security interests," Chinese Senior Colonel Wu Qian warned.
Israel's Brigadier General Ido Mizrachi told Newsweek "we have to be ready to operate against Hezbollah," which said the powerful Lebanese movement's forces are "always prepared" regardless of the IDF's massive military drills.
China and Pakistan are frustrated at warming U.S.-India defense ties, which threaten to upset the geopolitical balance of power in Asia.
"An uneasy situation remains on the western borders of the Union State," Russian Defense Minister Sergei Shoigu said of NATO activities off of Russia and Belarus.
"Air defense units in the northwestern region have been strengthened and more will be added if needed," Iranian Army commander Major General Abdolrahim Mousavi said.
"The U.S. has out-sanctioned itself," Iranian mission to the United Nations spokesperson Alireza Miryousefi told Newsweek after President Donald Trump's latest sanctions hit energy industries already subject to restrictions.
Up to 78 members of the Turkey-backed Faylaq al-Sham insurgent group were reportedly killed in a Russian attack in the renegade northwestern province of Idlib.
"Ukraine remains strictly committed to the policy of non-interference in internal affairs of other countries," the Ukrainian Foreign Ministry told Newsweek, emphasizing Russia was at the forefront of its concerns as the U.S. election approaches.
"There is no limit to China-Russia traditional friendship and no restricted area for expanding our cooperation," Chinese Foreign Ministry spokesperson Zhao Lijian said.
"We have repeatedly stated that Iran does not interfere in other countries' elections," Iranian mission to the United Nations spokesperson Alireza Miryousefi told Newsweek.
China, the nation at the center of the U.S. foreign policy debate ahead of a polarizing presidential election, wants simply to be left out of it.
Sudan has joined the United Arab Emirates and Bahrain in establishing diplomatic ties with Israel under deals overseen by President Donald Trump.
"The urgency with which Australia and I think India and Japan have committed themselves to strengthening the Quad is significant," Hervé Lemahieu told Newsweek, "and that's because the threat perception of China has been embraced."
"China doesn't export ideology, interfere in other countries' domestic affairs, seek to alter others' systems, or intend to have ideological confrontation with the United States or any other country," Foreign Ministry spokesperson Zhao Lijian said.
Two days after Newsweek reported that Syria asked for sanctions relief and troop withdrawal from the Al-Tanf garrison, Secretary of State Mike Pompeo said the U.S. would "compartmentalize" working to recover Austin Tice and Majd Kamalmaz from regional policy.
Iran's conventional military and the elite Revolutionary Guard began the Guardians of the Sky Velayat-99 exercise as Armenia-Azerbaijan tensions spilled over the border and a decades-long U.N. arms embargo expired.
Armenia's ambassador to the U.S. told Newsweek "Iran has the capacity and could use its leverages to restrain Azerbaijan and urge Turkey not to add fuel to fire in Nagorno Karabakh," while Azerbaijan's envoy "appreciates every offer to help with reaching the much needed peace in our region."
"Russia has proposed extending the New START for one year and is ready to assume a political obligation together with the United States to freeze the sides' existing arsenals of nuclear warheads during this period," the Russian Foreign Ministry said.
Lebanese General Security director Major General Abbas Ibrahim brought to Washington a list of demands for Damascus including sanctions relief and closing Al-Tanf garrison in exchange for help on returning Austin Tice and Majd Kamalmaz, Newsweek has learned.
Azerbaijan's ambassador to the United States Elin Suleymanov told Newsweek his country "appreciates every offer to help with reaching the much needed peace in our region."
"We took a good, bitter lesson from what happened in Rwanda, and we said this should never happen," Smail Chergui, African Union commissioner for peace and security, told Newsweek.
Russian President Vladimir Putin said "it would be extremely sad" if New START, the last remaining nuclear arms treaty between Moscow and Washington, were allowed to collapse.
"You see the rhetoric, but in reality, all of our interactions have been within international norms," a Pentagon spokesperson told Newsweek, "and we've continued on."
"Iran will be relieved from arms restrictions as early as Oct. 18. Naturally, from that date, we'll trade, on the basis of our national interests, with other countries in this field," Iranian mission to the U.N. spokesperson Alireza Miryousefi told Newsweek.