NATO by Egantx7

In April 1982, Argentina invaded the Falkland Islands, but NATO's Article 5 could not be invoked by the UK because of the location of the islands. The NATO charter specifically notes that attacks on member territories south of this line of latitude cannot lead to Article 5 being invoked, meaning a North Korean attack on Guam would likewise not trigger Article 5 being invoked. Identify the line of latitude which marks the southern border of Article 5 requests for intervention, a line of latitude so-named because of the sun's location during the summer solstice.