No, I was just busy and unmotivated.
Mexico
Adolfo walks up to the white house. Slipping through time, he walks in it after it is destroyed in 2021, then reappears in his chosen time in George Washington's dining room. A maid is currently setting out food, the guests soon to arrive. As she steps out, Adolfo hurries up and dumps the bag into his soup, stirring it thoroughly. Hours later, George Washington is dead from severe arsenic poisoning. Adolfo sits outside, contemplating his next move.
USA
Desmond Blue watches as Napoleon and his entourage stroll up to the artillery piece and inspect it. As Napoleon leans over to inspect it, it blows up in his face, killing him and those around him instantly. Desmond does a silent fist pump and looks around for a way to escape.
Australia
Ranic Thorbert jumps back five more years, to 2044. Still not enough, however. The situation is the same. He manages to catch a scrap of paper, though, which turns out to be an Australian propaganda poster for the war. It seems Australia followed the USA and Great Britain into battle.
France
André Dupont travels to France, 2010. He takes a plane to Moscow, Russia, where he finds, to his frustration, that the Americans still won the Revolutionary War.
China
Liu Fong jumps back to 1935, where the alleyway he was using for cover is presently a house. Thankfully, the residents are not home, and he slips out through a window unnoticed and begins skulking around the city. After retracing his steps through time multiple times, he manages to find Mao Zedong touring the city, and takes up a perch on top of a building, taking careful aim.
Japan
Piet Pompies jumps to 2020 and looks around. Little seems different. Japan has still abstained from joining the nuclear war, and has been as yet unfired upon. So Piet accesses a computer terminal in a library and does a little research where he finds, to his frustration, that while physics was set back significantly, the nuclear bomb was still invented.
Turn 3 is over! The timeline has changed! (changes will take effect later)