US President Joe Biden and Israeli President Isaac Herzog discussed on Wednesday the alleged threat to Ukraine posed by the Russian military drones allegedly provided by Iran, as "Israel" is under pressure to assist Kiev.

According to sources, "Israel" has been hesitant to join an alliance led by the US that is assisting pro-Western Ukraine in the war with Russia. 

The sources revealed that Herzog's trip to Washington, however, highlighted Israeli anxiety over the alleged expansion of Iran's role in the war. Herzog assured US Secretary of State Antony Blinken at their meeting on Tuesday that he was releasing intelligence to show that Iran has been giving the Russians military drones.

On the other hand, Ukrainian President Volodymyr Zelensky welcomed this Wednesday what he called "a positive trend in relations with Israel... After a long pause, I see us moving forward."

Herzog and Biden also discussed Iran's nuclear supply and the occupation President emphasize the Israeli opposition to the Biden administration's efforts to save the agreement that would restore foreign inspections in Iran in exchange for the lifting of sanctions.

This comes after Russian Foreign Ministry Spokesperson Maria Zakharova slammed the allegations that Iran has been supplying drones to Russia as "a set of groundless speculations."

Read more: 'Israel' provides Ukraine with intel on Iranian drones, not Iron Dome

Zakharova said, "The rumors about [deliveries of] Iranian unmanned aerial vehicles being spread by some independent, unnamed, and closed sources in the American media have been refuted in recent days by both Iranian and Russian officials."

"Is it necessary to comment on those allegations against us and Tehran? I don’t think so, because they are nothing but a set of groundless speculations <…> and far-fetched assumptions that Britain and France are trying to construct, and they have fallen to pieces in front of everyone again and again," the Russian Spokesperson considered.

Pointing to a recent statement by a deputy spokesperson for the US Department of State that claimed Iran has been supplying drones to Russia, Zakharova pointed out that "the hardest thing is to prove an axiom because an axiom is something that doesn’t need to be proved. And yet we are living in a world where we seem to have to do so time and again."