1020 AD
Roman Cavalry

Through a series of small wars, the Germans had been carving away at America. To prevent total German hegemony in America, the Romans massed Cavalry (16) on the border. The short war "over the future of America," resulted in modest Roman gains.

Si vis pacem, para bellum.
If you want peace, prepare for war.

MARCUS AURELIUS ANTONINUS
"His meditations, composed in the tumult of a camp, are still extant; and he even condescended to give lessons of philosophy in a more public manner than was perhaps consistent with the modesty of a sage, or the dignity of an emperor." 

"Marcus Aurelius was severe to himself, indulgent to the imperfections of others, just and beneficent to all mankind. He regretted that Avidius Cassius, who excited a rebellion in Syria, had disappointed him, by a voluntary death, of the pleasure of converting an enemy into a friend; and he justified the sincerity of that sentiment, by moderating the zeal of the senate against the adherents of the traitor. War he detested, as the disgrace and calamity of human nature; but when the necessity of a just defense called upon him to take up arms, he readily exposed his person to eight winter campaigns on the frozen banks of the Danube, the severity of which was at last fatal to the weakness of his constitution. His memory was revered by a grateful posterity, and above a century after his death, many persons preserved the image of Marcus Antoninus, among those of their household gods."

-- Sir Edward Gibbon, Decline and Fall of the Roman Empire

1170 AD
Steam Power

With the discovery of Steam Power, Roman industry had the potential to soar. Workers were the essential ingredient and Caesar ordered more Workers. Within a hundred years, more than a hundred workers would build a Rail Network from one end of the Roman world to the other. Caesar had visions of Industrial grandeur and was counting his gold when it suddenly occurred to him that there was no Coal anywhere in Italy. NO COAL!

Caesar frantically tried to find a source of coal to start the engine of Industry. After a short war, Caesar had his Coal, but the end-result was a long period of strife between the Latins and the Germans. 

Praeterea censeo Bismark esse delendam.
Furthermore, I believe Bismark should be destroyed.

Sibylline Curse from I, Claudius
by Sir Robert Graves

During the Second German War, in a gamble for ruthless domination, Bismark ordered his Panzers across the border. They immediately smashed a hole through the Roman Infantry lines, but were stopped by the defenders at St. Louis. Roman Artillery and Infantry then destroyed the invaders.

But how would Caesar counter the Panzers?

Solitudinem faciunt, pacem appelant.
They made a desert and called it peace.

1650 AD
Dreadful Diplomacy

Bismark then enticed other nations to attack Rome, in an attempt to dismember Italy, but his distant allies would be of little help, and spent their energy trying to enlarge their own empires. With deft defense, Caesar destroyed each of Bismark's invasion forces, with little loss on the Roman side. His strength sapped, Bismark would eventually be forced into injurious Peace Treaties, and by the end of the Third German War would be obliged to surrender all his scientific technology.  

1750 AD
The Modern Age

Claudius convinces the nations of the world to convene and try to work out diplomatic solutions to the world's problems. The United Nations was the worst of all systems, . . . except for all the rest.  

Cedant arma togae, concedat laurea laudi.
May arms yield to the toga,
may the glory of war give way to the glory of peaceful feats.