ðə spˈeɪs fˈɛns ɪz ɐ sˈɛkənddʒˌɛnɚɹˈeɪʃən spˈeɪs sɚvˈeɪləns sˈɪstəm ˈɑːpɚɹˌeɪɾᵻd baɪ ðə juːnˈaɪɾᵻd stˈeɪts spˈeɪs fˈoːɹs ɪn ˈɔːɹdɚ tə tɹˈæk ˌɑːɹɾɪfˈɪʃəl sˈæɾəlˌaɪts ænd spˈeɪs dəbɹˈiː ɪn ˈɜːθ ˈɔːɹbɪt.
The Space Fence is a second-generation space surveillance system operated by the United States Space Force in order to track artificial satellites and space debris in Earth orbit.