Trying to find title.
Alien covert invasion by AI/robots
they bury their kit after they land
3 or more triangle? shaped in orbit
6? alien agents on earth. 1 in china 1 in America 1 in India ?
American agent becomes friend of earth and does various things to help.
( helps in Pakistan, Embassy/government building.
Long book and similar to Nuttal.


Thanks

Found it
Stephen Moss "Fear The Sky"