In what appears to be a message to Iran, the Israeli military posted footage of a long-range flight exercise on YouTube Thursday.
The video shows a mid-air refueling of a fighter jet. These drills have been done before, but some say putting up the footage just days before Western powers open new talks with Iran over its nuclear program appears aimed at reminding Iran that a military option is still possible.
Israel views a nuclear-armed Iran as a threat to its existence, and has warned the West against giving into Iran's softer tone.
"People have tried to destroy us time and time again. They've not succeeded," Prime Minister Benjamin Netanyahu said In recent speeches.
"We're not going to let the likes of the Ayatollas succeed. The important thing is it's not merely an Israeli issue. It's also your issue. And I think it's an issue for Germany," he continued. "I expect them to do the right thing and the right thing is not to fall into a trap."
The Israeli Air Force plays a central role in carrying out Israel's military option if necessary.
Meanwhile, Iran has cancelled its annual anti-Israeli conference. The move is part of President Rouhani's efforts to ease tensions with the West.
The conference was set up by Rouhani's predecessor Mahmoud Ahmadinejad. It promoted his anti-Israeli views.
During the conference in 2005, Ahmadinejad said Israel should be "wiped off the map" and suggested the Holcaust was a myth.
One of the organizers called the cancellation a "disaster."