Easiest conquest?

For making things quicker, deploy your generals on units with skills that allow them to ignore terrain's movement cost, like the combination woad raider + ravenna crossbowmen, for instance.
Also keep some scout cavalry behind your troops, so they can take cities if you open them but don't have enough mobility for entering them.

Anglo Saxon is one of the easiest conquests in the series, and short conquest is quite fast, but a full conquest will take quite awhile.

anddd yesterday, it was also the first conquest in which i achieved hegemony. It was quite easy at the start, and at the end, it was also easy, and it doesn't take quite long, only 57 turns.

Phase 1 
Basically I quickly defeated Britons in less than 10 turns, it will be really great to get Lincoln in the first turn, afterwards I summoned Belisarius on the tavern there. Afterwards, I soon swept through the country, the bottom 2 cities were a bit challenging to get though, but not that hard, only costed 2 rounds or so. Next, I prepared troops from Britain and my homeland to Salian Frank Territory, and they got mad, but not fast enough lol, I got tired of waiting for them to declare war on me so I declared war on them first and quickly took a city in a turn, I need to be fast since I am worried about the Huns at round 16. After defeating them, my eyes are now set toward the Franks so I can have a safer southern flank against the Huns. So I positioned my troops again in neutral territory, and this time, they declared war at me first, and I was shocked, but fortunately my troops were prepared for taking cities so they quickly fought back, but then, it was a bit too late. The Huns had arrived, and there was still one more Frankish city, luckily I only sent 2 generals to deal with the last city and the rest of my generals with some supporting defensive units at the back defended every tile that would border the huns except for the most southern one, but it was not a concern. So the Huns attacked and I was a bit nervous, but then Atilla got surrounded by 3 of my generals and easily killed, and then I thought maybe this was easier than I thought, and it kinda was. The northern part of the fight was quite easy, I soon surrounded the closest city at the top, took some time fighting, and then took it. At the middle part, it was more challenging since there were more generals there. At the south, things are harder since there were Franks and the Huns are doing their main attack over there, but it wasn't so so bad, I just went back to my cities, which I upgraded to level 3, and replenished my units, I upgraded to level 4, it didn't unlock anything, probably because it is the first conquest of the four (or five if updated, or more), I just then also discovered what the age system does (like castle age, feudal age, dark age, wild age etc.). Anyways, after some intense fighting, the Northern side was cleared and we just raided at the north and took more stuff and to help the middle, which we soon won, John now focused on the northernmost city while the rest swung down to surround the Huns and take more cities. The southern front was also being won as well, the Franks are defeated. More things to note, I allied with the Burgundians and made a passage agreement with the Alemanni. Bretons requested for a gift, I denied since it was a great opportunity, and they declared war, luckily I soon prepared 3 units (and one more later) to get their one city, and then they got another one, but it wasn't actually a problem, since after we fought the Bretons at sea, the next round we soon took both of the cities they have, all in a single round. Now back at the Hunnic war, the tide soon clearly turned in our favor, the northernmost city was took, Krakow was took, there were no more Hunnic cities left, so imagine my surprise when they still aren't annihilated, apparently you have to defeat all of their units.

Phase 2 
Back at the western theater, the Western Roman empire is threatening me so badly, luckily I have lots of money, actually, too much, so replenishing even at more than 50% health for my units was completely fine, I also discovered the trading system in which you can exchange silver for iron, and vice versa, cool. Anyways, I had my sights on the Visigoths, since they seemed easy to defeat, so just like earlier, I positioned my troops in their territory and declared war, quickly swept through, except for Bordeaux, it was quite difficult to get, and I don't want those Romans to get it, luckily, I eventually got it. Speaking of the Romans, they defeated my allies, the Burgundians, and I was planning to betray them later on, so that was really nice of you Rome. Anyways, I want to defeat the Ostrogoths next, since they were easier to kill, but I remembered that maybe defeating Rome will be faster and I allied with the Ostrogoths while secretly planning a very cruel betrayal. So yeah, I had lots of money to spare, I allied them, prepared my troops to take Strasbourg, Dijon, Orleans, and there we go, the war with Rome is on, and now they are fighting all of us, Huns are also dead before this point I forgot to mention that. Unfortunately, just as I was preparing to betray the Alemanni, the ones which I have a passage agreement with, the Romans annihilated them, good for you rome. But that doesn't matter, we swept through many Roman cities, Paris, Milan and Toulouse were hard to get though, and I was making sure to not let the Ostrogoths get my target cities. Speaking of the Ostrogoths, while all of that was happening, I kept 6 of my units (all with generals) around Krakow and sent them straight to Budapest, the ostrogothic capital, but I realized it was overkill and calculated that I only needed 4 troops to get that, so I sent the remaining two units to a level 1 city on the Dalmatian coast, Salona, those two units were enough to get them. I also decided to spawn more cities at the north of our border so I can be sure to protect it, and to get Vienna afterwards. Ok, so the Romans are falling, Ravenna was captured the Ostrogoths, I am now putting transports on some units to aid ones that do to get Corsica, I got Genoa, at this point, I am confident enough to declare war on the Ostrogoths now, I spawned more units just to be safe, and did the deed, it kinda felt bad, but there's no going back now. Corsica took some time to get, but I captured it and afterwards I now threatened the Italian Peninsula, including the great city itself. On the eastern theater, Budapest falls and while my units that were meant to attack Vienna were attacking other cities, suddenly now I have an extra unit that didn't attack Budapest, since I overcalculated lol, but there was an enemy unit on that area so I attacked it as well. On the next rounds, I sent another general to help the one attacking the enemy unit and they took Vienna afterwards, while the other two swung down and took more cities. At Salona, I spawned a unit there to defend from attacks, and it almost got taken twice, once here, and later at the ending like dang that was close. The other two generals there defended Salona as well, and as the coast was clear, one helped get more cities at the south and the defending unit with the other general took the city at the north. At roughly the same time. the troops at the west took the Italian Peninsula, the Western Roman empire was dead, what's left was that one city north of Salona and Ravenna, I forgot what fell first, but one thing was clear, after I took the last city, it was game over. It felt kinda bad to kill the Ostrogoths, but hey, I got the rewards. It seems that I overprepared a bit, lol.
 

And yeah, I forgot I can make nations surrender ;-; that would've made life easier 

My Anglo-Saxon hegemony was somewhat similar. 



My first thing I did was take Lincoln in the second turn, then quickly focused my sights to London with my Southern Invasion fleet. I took London at around turn 5, and then swiftly rushed the rest of the cities, destroying the Britons at turn 7. I then declared war on the Salian Franks, and held them back slightly until the troops from England could return, then I steamrolled them by turn 10. I took some open cities from the Romans in Northern France, then declared war on the Visigoths. I finished them off by turn 20, yet had to bribe out the Huns to prevent their attack by this time I had all of Salian Franks territory, all of France excluding Lyon. Marseille, and Toulouse. I slowly built up my army until I was certain I could stop the Huns completely, then I declared war. By this time the Huns have made it all the way to Zurich, destroying the Alemanni, and taking Prague. I allied with the Ostrogoths, who were locked in a stalemate with the Romans; each side gaining ground before a counter attack by the other side. The Romans would occasionally take parts of Croatia, and the Ostrogoths would get as far as Trent, but never Ravenna. I ended up taking all the Huns Polish territory, then surrounded them until they were left in Zurich, which was under siege for around 4 turns until the Romans took the city.

When I was preparing for the final battle, I took out the Bretons, and soon after the Franks. Then, I finally declared war on the Romans. In the Western Front I took Lyon quite quickly, but it took me 4 more turns until I could take Marseille. Over in the Italian Front, Zurich was heavily defended, so I flanked them by taking Trent and Milan, taking the Romans out. I combined both armies and in 6 turns defeated the Italians. However, I broke my alliance with the Ostrogoths (because I felt like it) and easily steamrolled them.

I also did not know surrender existed. 

If you have Justinian+Theodora both at general rank, you can do it in 4 turns even if you are free-to-play.
And even without Justinian and Theodora you can do it in 5 turns.

Welcome to the forum, btw

Compared to other ET games, all conquests are easy. Justinian + Theodora and a free strike general like Richard from the castle is an absolute guarantee of victory. A little intrigue at the beginning of nations without a starting castle.