Republican presidential candidate Donald Trump brings Israel as an example that walls can work in protecting a country’s borders.

In his book “Crippled America,” Trump cites Israel as proof that his plan to build a wall along the border with Mexico will stop illegal immigration. “Walls work. The Israelis spent $2 million per kilometer to build a wall – which has been hugely successful in stopping terrorists from getting into the country,” Trump writes. “Ironically, some of the same people who claim we shouldn’t build a wall cite the success of Israel’s wall. While obviously we don’t face the same level of terrorist threat as our closest Middle East ally, there is no question about the value of a wall in the fight against terrorism.”

Trump refers in the book to the Israeli West Bank barrier built along the 1949 Armistice Line. Israel has also recently completed a fence along the border with Egypt with the goal of stopping the influx of illegal immigrants crossing into Israel. In the first six months 2013 after the 245-mile fence was completed, only 34 illegal immigrants crossed the border, compared to 9,570 citizens of various African countries who entered Israel illegally in the first half of 2012.

Trump also dedicates a chapter touting his foreign policy views titled “Foreign Policy: Fighting For Peace.”

Speaking at a press conference to promote the new book in Trump Tower Tuesday morning, Trump emphasized, “Walls work; all you have to do is ask Israel. Walls work – if it’s properly constructed. All you have to do is go and see Israel; they will tell you that walls work.”

This post originally appeared at Jewish Insider.