Mobile Suit Gundam Thunderbolt: December Sky
The Earth Federation and Principality of Zeon engage in a fierce battle at the 'Thunderbolt Sector', a shoal zone in the former Colony Side 4 'Moore'. MS pilot Io Flemming is among the Federation soldiers who are dispatched to the area, where Zeon sniper Daryl Lorenz awaits them on the battlefield.
6 January 1959, New York City, New York, USA
20 September 1974, Hartford, Connecticut, USA
8 February 1972, Tokyo, Japan
21 June 1988
16 August 1982, Arlington, Texas, USA
5 September 1990, Los Angeles County, California, USA
6 December 1975, Yokohama, Japan
4 June 1973, Niigata, Japan
6 January 1976, Kansas City, Missouri, USA
16 February 1982, Lansing, Michigan, USA
24 November 1959, Ann Arbor, Michigan, USA
13 August 1972, Nice, Alpes-Maritimes, France
22 September 1974, New York City, New York, USA
19 July 1988, Dallas, Texas, USA
20 May 1965, Miyazaki, Japan
January 26, 2019
It's grim without being so for the sake of it (though I wouldn't watch it if you're looking for an uplifting tale...) and the animation, music and voicework are all top notch.

