Message regarding the Russian military action in Ukraine

Abstract

Yasuhide Fukumoto, Kyushu University, Japan Martin Oberlack, Technische Universität Darmstadt, Germany Shu Takagi, The University of Tokyo, Japan Minami Yoda, Georgia Institute of Technology, USA Graham Hughes, Imperial College London, United Kingdom Genta Kawahara, Osaka University, Japan Stefan Llewellyn Smith, University of California, USA Laurent B Mydlarski, McGill University, Canada Koji Nagata, Nagoya University, Japan Benôıt Pier, CNRS-Université de Lyon, France Hyung Jin Sung, Korea Advanced Institute of Science and Technology, South Korea Kazuyoshi Suga, Osaka Metropolitan University, Japan Makoto Iima, Hiroshima University, Japan Yuka Iga, Tohoku University, Japan Keiichi Ishioka, Kyoto University, Japan Masahide Inagaki, Toyota Central R&D Labs., Inc., Japan Kaoru Iwamoto, Tokyo University of Agriculture and Technology, Japan Marie Oshima, The University of Tokyo, Japan Masako Sugihara-Seki, Kansai University, Japan Mamoru Tanahashi, Tokyo Institute of Technology, Japan Yoshiyuki Tsuji, Nagoya University, Japan Hiroki Nagai, Tohoku University, Japan Yasuo Nihei, Tokyo University of Science, Japan Koji Fukagata, Keio University, Japan Mizue Munakata, Kumamoto University, Japan Shinsuke Mochizuki, Okayama University, Japan Toshiyuki Gotoh, Nagoya Institute Technology, Japan Kenji Yoshida, Japan Aerospace Exploration Agency, Japan