By summer 1918, a million American soldiers, or "doughboys" as they were often called, of the American Expeditionary Forces were in Europe under the command of John J. Pershing, with 25,000 more arriving every week. The failure of Germany's spring offensive exhausted its reserves and they were unable to launch new offensives. The German Navy and home front then revolted and a new German government signed a conditional surrender, the Armistice, ending the war against the western front on November 11, 1918.
What was the official name of the American army that went to fight in Europe in 1918?
American Expeditionary Forces

Director Sima Urale is an award-winning filmmaker. Urale's short film O Tamaiti won the prestigious Best Short Film at the Venice Film Festival in 1996. Her first feature film Apron Strings opened the 2008 NZ International Film Festival. The feature film Siones Wedding, co-written by Oscar Kightley, was financially successful following premieres in Auckland and Apia. The 2011 film The Orator was the first ever fully Samoan film, shot in Samoa in the Samoan language with a Samoan cast telling a uniquely Samoan story. Written and directed by Tusi Tamasese, it received much critical acclaim and attention at film festivals throughout the world.
In what year did Apron Strings star as the opening film of the NZ International Film Festival?
2008

Two assumptions underpinned the British approach to HAA fire; first, aimed fire was the primary method and this was enabled by predicting gun data from visually tracking the target and having its height. Second, that the target would maintain a steady course, speed and height. This HAA was to engage targets up to 24,000 feet. Mechanical, as opposed to igniferous, time fuses were required because the speed of powder burning varied with height so fuse length was not a simple function of time of flight. Automated fire ensured a constant rate of fire that made it easier to predict where each shell should be individually aimed.
Along with predicting the gun data from tracking the target, what else needed to be known about the target to enable the aimed fire?
its height