Turkey has accepted assurances a planned NATO missile defense system in which it is playing a part is not designed to protect Israel as well, the alliance’s deputy secretary-general said on Wednesday.

Alexander Vershbow said objections by Prime Minister Tayyip Erdogan’s government had resulted in part from confusion about a Turkish-hosted NATO radar. Ankara had been further assuaged by alliance Patriot anti-missile batteries assigned to protect its territory from Syria.

A leaked U.S. diplomatic cable from 2010 described the Islamist-rooted Erdogan, under whom Turkey’s once-solid ties with the Jewish state have deteriorated, as worrying that the NATO shield might provide cover for a threatened Israeli attack on Iran’s nuclear sites.