Benjamin Netanyahu, prime minister of Israel, literally drew a "red line" on a chart during the U.N. General Assembly in New York Thursday, demonstrating what he believes is the only peaceful way to prevent an Iranian nuclear bomb.

Holding up a chart representing a bomb already delineated with a first, second and final stage, Netanyahu drew with a thick marker his proposed "red line" in front of the assembly.

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"A red line must be drawn ... on Iran's efforts to enrich uranium," he says. "Basically any bomb consists of explosive material and a mechanism to ignite it. ... In the case of Iran's plans, the gunpowder is enriched uranium. The fuse is a nuclear detonator."

A strain has been put between Netanyahu and President Obama because of Iran's controversial nuclear program.  Both Israel and the West suspect Tehran of trying to build nuclear weapons even though Tehran insist its program is peaceful.

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Netanyahu has been pushing the U.S. to establish a clear "red line" not to be crossed if Iran wants to avoid war.  

For Israel, the issue of how to respond to Iran's controversial nuclear program has put a strain on relations between Netanyahu and President Barack Obama. Tehran insists its atomic program is for peaceful purposes, but Western leaders say they believe it is aimed at building a weapon.

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Netanyahu has been pushing the United States to establish a clear "red line" that Iran cannot cross if it wants to avoid war.

WATCH: the Guardian's live blog of the U.N. General Assembly.

Read more of Neon Tommy's coverage of Israel and Iran here and here.

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