It is the site of the headquarters of the Luxembourg military, Centre Militaire (Military Centre), located in the "Caserne Grand-Duc Jean" barracks.
ɪɾ ɪz ðə sˈaɪt ʌvðə hɛdkwˈɔːɹɾɚz ʌvðə lˈʌksəmbˌɜːɡ mˈɪlətˌɛɹi, sˈɛntɚ mˌɪlɪtˈɛɹ mˈɪlətˌɛɹi sˈɛntɚ, loʊkˈeɪɾᵻd ɪnðə "kˈæsɚn ɡɹˈænddˈʌk dʒˈiːn" bˈɛɹəks.