China mid-course anti-missile test was successful.

https://www.reuters.com/article/us-china-defence/china-says-carries-out-another-anti-missile-test-idUSKBN1FQ08X

USA aegis system failed but China mid-course anti-missile test was successful.

https://sg-stock.blogspot.sg/2018/02/usa-aegis-missile-defence-system-failed.html

Mid-course interception is difficult because the incoming missile has not re-entered the atmosphere from outer space yet.

Congrats to China for the successful test!