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A 2018 report from the [[Center for Immigration Studies]] found that the cost of a border wall is less than the cost of illegal immigration.<ref>Byas, Steve (October 9, 2018). [https://www.thenewamerican.com/usnews/immigration/item/30287-cost-of-border-wall-less-than-cost-of-illegal-immigration Cost of Border Wall Less Than Cost of Illegal Immigration]. ''The New American''. Retrieved October 9, 2018.</ref><ref>Bedard, Paul (October 9, 2018). [https://www.washingtonexaminer.com/washington-secrets/shock-report-us-paying-more-for-illegal-immigrant-births-than-trumps-wall Shock report: US paying more for illegal immigrant births than Trump’s wall]. ''Washington Examiner''. Retrieved October 9, 2018.</ref> It also would be less expensive than a [[DACA]] amnesty.<ref>Binder, John (December 11, 2018). [https://www.breitbart.com/politics/2018/12/11/daca-amnesty-would-render-border-wall-useless-cost-americans-26b/ DACA Amnesty Would Render Border Wall Useless, Cost Americans $26B]. ''Breitbart News''. Retrieved December 11, 2018.</ref>

A 2018 report from the [[Center for Immigration Studies]] found that the cost of a border wall is less than the cost of illegal immigration.<ref>Byas, Steve (October 9, 2018). [https://www.thenewamerican.com/usnews/immigration/item/30287-cost-of-border-wall-less-than-cost-of-illegal-immigration Cost of Border Wall Less Than Cost of Illegal Immigration]. ''The New American''. Retrieved October 9, 2018.</ref><ref>Bedard, Paul (October 9, 2018). [https://www.washingtonexaminer.com/washington-secrets/shock-report-us-paying-more-for-illegal-immigrant-births-than-trumps-wall Shock report: US paying more for illegal immigrant births than Trump’s wall]. ''Washington Examiner''. Retrieved October 9, 2018.</ref> It also would be less expensive than a [[DACA]] amnesty.<ref>Binder, John (December 11, 2018). [https://www.breitbart.com/politics/2018/12/11/daca-amnesty-would-render-border-wall-useless-cost-americans-26b/ DACA Amnesty Would Render Border Wall Useless, Cost Americans $26B]. ''Breitbart News''. Retrieved December 11, 2018.</ref>

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== Border wall across Mexico as a defensive strategy ==

[[Denial (Military strategy)|Denial is a military defensive strategy]] where the defender makes it prohibitively difficult for an opponent to obtain a military objective.<ref>[https://www.britannica.com/topic/denial-military-strategy Denial - military stategy, Encycloppedia Britannica online]</ref>

[[Denial (Military strategy)|Denial is a military defensive strategy]] where the defender makes it prohibitively difficult for an opponent to obtain a military objective.<ref>[https://www.britannica.com/topic/denial-military-strategy Denial - military stategy, Encycloppedia Britannica online]</ref>