Japan: Okinawa Prefecture

Okinawa Prefecture (沖縄県, Japanese: Okinawa-ken) is a prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan and has a population of 1,457,162 (as of 2 February 2020). Okinawa was occupied by the United States during the Allied occupation of Japan after World War II and was governed by the Military Government of the Ryukyu Islands from 1945 to 1950 and Civil Administration of the Ryukyu Islands from 1950 until the prefecture was returned to Japan in 1972. Okinawa comprises just 0.6 percent of Japan's total land mass, but about 26,000 (75%) of United States Forces Japan personnel are assigned to the prefecture; the continued U.S. military presence in Okinawa is controversial.

Stamp:

Unknown (maybe someone can help)

Many thanks to Linda!

Germany: Research Vessel Polarstern on Expedition PS129

The expedition PS129 of the German research vessel Polarstern wanted to provide contributions to scientific projects encompassing physical oceanography, marine biology and marine chemistry, with the aim to investigate the water masses of the Weddell Sea and adjacent oceanic regions, and the ecological and chemical cycles within the regions. The expedition was another continuation of the long-term time series work in the framework of Hybrid Antarctic Float Observation System (HAFOS). The Polarstern  departed from Cape Town, South Africa, on 3 March 2022, taking a route across the Southern Ocean to Antarctica and back, and ended on 28 April 2022 in Stanley, Falkland Islands.

Source: https://epic.awi.de/id/eprint/55571/1/Expeditionsprogramm_PS129.pdf

Stamps:

The Dangers of Climate Change - The Forest is Climate Protection - Issued: 07-10-2021

Definitive Series "Flowers" 0.10ct - Issued: 08-06-2017

Thailand: The 50th Anniversary of Diplomatic Relations with Poland - Joint Issue w/ Poland

 

Stamps:

2x The 50th Anniversary of Diplomatic Relations with Poland - Joint Issue w/ Poland - Issued: 14-11-2022

Many thanks Thapanaphong!

South Korea: Protecting Endangered Species in Korea-Cambodia REDD + Joint Project Areas

 

Stamps:

Protecting Endangered Species in Korea-Cambodia REDD + Joint Project Areas (full set) - Issued: 10-02-2023

Stamp:

Protecting Endangered Species in Korea-Cambodia REDD + Joint Project Areas (from a set of two) - Issued: 10-02-2023

Many thanks to Wonsik & Park Pyo Jun!

Chile: Preservation of the Poles and Glaciers

 

Stamps:

Preservation of the Poles and Glaciers (full set) - Issued: 18-03-2009

Many thanks to Rosa!

Estonia: Summer Olympics Winner - The Estonian Women's Epee Team (m/s)

 

Stamp:

Summer Olympics Winner - The Estonian Women's Epee Team (m/s) - Issued: 29-12-2021

Many thanks to Simone for sending as registered Mail!

Slovenia: Football World Cup - South Africa / World Basketball Championship

 

Stamps:

Football World Cup - South Africa / World Basketball Championship - Issued: 28-05-2010

Many thanks to Slavica!

China: 120th Anniversary of the Founding of Shanxi University

Shanxi University (simplified Chinese: 山西大学; SXU) is a public university located in the city of Taiyuan, Shanxi province, China. Shanxi University is one of the oldest institutions of higher learning in China. Shanxi University also has been included in the national construction project of world-class universities and disciplines (Double World-class for short). 

 

This commemorative cover above was issued on 8th May 2022. Additional stamps were added on the cover.

Stamps: 

4x Asian Civilizations (from a set of 6) - Issued: 15-05-2020

Many thanls to Wei W. Ang!