Yeah, no worries. The generational theory of warfare starts with the Peace of Westphalia, the start of the modern era and the monopolisation of armed force by the nation-state.
1GW represents the start of this. It used the smoothbore rifle, the column and the line, displined drilling to produce a decent rate of fire. Much of 1GW survives in todays militaries.
2GW is massed firepower without mobility. The trenches of WWI, the rifled musket, the machine gun, barbed wire, firepower replaces manpower, massive wars of attrition. Most armed forces would fall under this category.
3GW was developed by the Germans in response to the weakness of their industrial base, i.e. that knew that they could not afford to fight a prolonged war of attrition with the Allies. These tactics were pretty radical, relying on movement not firepower, attacking non linearly, using infiltration, defending in depth to set up the counterattack. The IDF were the best modern example of this, until recently.
4GW marks the end of the states monoploy on armed force. Radically decentralisaed non-state actors wage moral warfare, seeking to hit the enemy right in his political motivation, the battlefield is dispersed, civilian and soldiers collapse into one another...