Guam
defense is the responsibility of the US
Guernsey
defense is the responsibility of the UK
Heard Island and McDonald Islands
defense is the responsibility of
Australia; Australia conducts fisheries patrols
Holy See (Vatican City) defense is the responsibility of Italy; ceremonial and limited security duties performed by Pontifical Swiss Guard
Hong Kong
defense is the responsibility of China
Howland Island
defense is the responsibility of the US; visited
annually by the US Coast Guard
Iceland
defense is provided by the US-manned Icelandic Defense Force
(IDF) headquartered at Keflavik
Jan Mayen
defense is the responsibility of Norway
Jarvis Island
defense is the responsibility of the US; visited
annually by the US Coast Guard
Jersey
defense is the responsibility of the UK