Magal Security Systems, the Israeli firm who built many sections of the various border walls separating Israel from Palestinian territories, has offered their expertise to the new border wall project between the US and Mexico propsed by President Trump. This adds to tensions raised in the region over the possibility of the US moving the embassy from Tel Aviv to Jerusalem, and criticisms over inadequate US response to Israeli settlement in the West Bank.
http://www.independent.co.uk/news/world/americas/israeli-company-magal-security-gaza-build-wall-donald-trump-us-mexico-border-a7564271.html