Netanyahu said he was "more concerned about Iran in the aftermath of his meeting with his chief political rival" Lapid than before the meeting.
A Ukrainian report claiming that Iran copied Israel's Spike anti-missile tank and put it on a drone has been circulating in Iran - exactly how Iran wants.
Iran uses drones to monitor internal threats, such as Kurdish resistance groups that oppose the regime, as well as its border with Afghanistan and Pakistan.
The Kaman-22 is a long-range and strategic multi-functional combat drone with an operational range of over 3,000 kilometers.
The exercise covers an area from the eastern parts of the Strait of Hormuz to the northern parts of the Indian Ocean and parts of the Red Sea.
Two Iranian ships, the Sahand and Makran have been on an epic voyage since late May.
Iran has improved several key military capabilities, from expanding its drone fleet to a christening a new naval vessel.
Tal Inbar: Recent launch was Iran signaling its missile program is off the table for Iran deal discussions
Iran has been showcasing missiles, drones and naval ships in recent weeks, seeking to show off its capabilities on the eve of the incoming Biden administration.
The drill, which comes in the waning days of high tensions with US President Donald Trump's administration, was conducted in the country's central desert region.