Palau:
defense is the responsibility of the US; under a Compact of
Free Association between Palau and the US, the US military is
granted access to the islands for 50 years

Palmyra Atoll:
defense is the responsibility of the US

Panama:
on 10 February 1990, the government of then President ENDARA
abolished Panama's military and reformed the security apparatus by
creating the Panamanian Public Forces; in October 1994, Panama's
Legislative Assembly approved a constitutional amendment prohibiting
the creation of a standing military force, but allowing the
temporary establishment of special police units to counter acts of
"external aggression"

Paracel Islands:
occupied by China

Pitcairn Islands:
defense is the responsibility of the UK

Puerto Rico:
defense is the responsibility of the US

Reunion:
defense is the responsibility of France

Saint Helena:
defense is the responsibility of the UK

Saint Pierre and Miquelon:
defense is the responsibility of France

Samoa:
Samoa has no formal defense structure or regular armed
forces; informal defense ties exist with NZ, which is required to
consider any Samoan request for assistance under the 1962 Treaty of
Friendship