What were there tactics for the allies in World War 1?

Answer 1

Well WW I had many tactics. They used trench warfare and gas warfare the most. Bombarding an enemy trench with hundred of cannons before sending troops was popular in WW I as well.

Trench warfare wasn't a tactic, but a de facto result of the stalemate of the waring forces. The main tactic used by the allies was to continually increase the size of the attacking forces as well as the use of rolling barrages in conjunction with the attacking forces. A rolling barrage means a barrage that moves forward on a timed basis just ahead of the troops. They never worked. Additionally, prolonged artillery barrages lasting many days would proceed the assault. The use of the long lasting barrages just let the Germans know where the attack was to take place, move men to a safe place, and to bring up reserves to be ready to fight. The introduction of the machine gun as well as the introduction of high explosive shells spelled doom to all attacking forces, allies and axises alike, which the military high command failed to grasp. This was the end of the Napoleonic form of warfare. Trench warfare, aka, positional warfare, was another, albeit a larger form of, siege warfare.