Tehran confirmed the purchase of Moscow's Sukhoi Su-35 fighter jets, strengthening the countries' military and political ties.

Nicole Grajewski is a Fellow in the Nuclear Policy Program at the Carnegie Endowment for International Peace and an Associate with the Project on Managing the Atom at the Harvard Kennedy School. She is the author of Russia and Iran: Partners in Defiance From Syria to Ukraine.

Donald Trump made the executive order to build an Iron Dome-like defence system that aims to protect US citizens and critical infrastructure across the country

Iran and Russia have grown closer since the start of the Ukraine war as the two countries face international sanctions.

It already appears evident that the days of Russia serving as its leading arms supplier have come to an ignominious end.

Israel is considering sending Soviet and Russian-made weapons captured in Lebanon to Ukraine, with signs transfers may be under way.

Russia welcomes any settlement that leads to security in Gaza after a ceasefire and hostage release deal between Israel and Hamas was announced, Kremlin spokesman Dmitry Peskov said.

On the eve of his historic return to the White House, Trump helped broker the ceasefire between Hamas and Israel that has allowed many of the Israeli (and American) hostages who were kidnapped by Hamas on October 7 to be returned. If the deal holds, more will be released over time.

The US has sent around 90 Patriot air defense interceptors from Israel to Ukraine via Poland, marking the most significant weapons transfer between Israel and Kyiv since Russia’s full-scale war began.

Israeli Prime Minister Benjamin Netanyahu says President Donald Trump has invited him to visit the White House on Feb. 4. This will make Netanyahu the first foreign leader to visit Washington in Trump’s second term.

An executive order said the United States faced a “catastrophic threat” from advanced aerial weapons. But a defense system like Israel’s may not be feasible in the country, which is more than 400 times larger.