Let's face it, how many non US aircraft have the US armed forces ever bought?
Aeritalia G.222 - C-27 Spartan
AgustaWestland AW101 Merlin - VH-71 Kestrel
Agusta A109E Power - MH-68
AgustaWestland AW119 Koala - TH-119
AgustaWestland AW139 - MH-139
Alenia C-27J Spartan
Antonov An-26
Bombardier Challenger 604 - C-143A
Bombardier Global 6000 - E-11A Sentinel
British Aerospace 125 - C-29
CASA C-212 Aviocar - C-41A
CASA/IPTN CN-235 - C-144/HC-144 Ocean Sentry
Canadair CL-13 Sabre
Chengdu J-7
Dassault Falcon 20 - HU-25 Guardian
De Havilland Canada DHC-2 Beaver - C-127, L-20A/B, U-6A/B
De Havilland Canada DHC-3 Otter - U-1A/B Otter
De Havilland Canada DHC-4 Caribou - CV-2/C-7 Caribou
De Havilland Canada DHC-5 Buffalo - AC-2/CV-7A/C-8A Buffalo
De Havilland Canada DHC-6 Twin Otter - UV-18 Twin Otter
De Havilland Canada DHC-7 Dash-7 - RC-7B/EO-5C
De Havilland Canada DHC-8 Dash-8 - E-9A Widget
Diamond DA20 Katana
Diamond DA40 Star - T-52
Dornier Do328 - C-146 Wolfhound
Embraer EMB 314 Super Tucano
English Electric Canberra - B-57/RB-57 Canberra
Eurocopter AS365 Dauphin - HH-65 Dolphin
Eurocopter EC145 - UH-72 Lakota
Fokker F27 Friendship - C-21A Troopship
Handley Page HP.137 Jetstream - C-10A
Hawker Siddeley Harrier - AV-8 Harrier
Hawker Hawk - T-45 Goshawk
IAI Kfir - F-21
MMIST CQ-10 Snowgoose
Mikoyan-Gurevich MiG-15
Mikoyan-Gurevich MiG-17
Mikoyan-Gurevich MiG-21
Mikoyan MiG-29
Mil Mi-2
Mil Mi-8/17
Mil Mi-24
Mitsubishi MU-300 Diamond - Raytheon T-1A Jayhawk
PZL M28 Skytruck - C-145 Skytruck
Pilatus PC-6 Porter - AU-23 Peacemaker/OV-12/UV-12 Chiricahua
Pilatus PC-9 - T-6 Texan II
Pilatus PC-12 - U-28A Spectre
Shenyang J-5
Short 330 - C-23A Sherpa
Short 360 - C-23B Sherpa