Who attacked Caesar or Pompey first?

Civil Wars: How Caesar Lost a Battle against Pompey

When Caesar in January 49 BC When he crossed the Rubicon river with 3,000 soldiers, which separated his area of ​​command from Italy, he is said to have spoken of a game of dice for good reason. Because the victory in the civil war, which he opened with it, was by no means as unambiguous as it would be in hindsight. A game of risk with the highest stakes began, in which the opposing party also had good cards.

In July 48, Caesar had locked his former ally Pompeius, who had now taken over the leadership of the Senate army, at Dyrrhachium (Durrës in Albania). But he blew up the blockade ring and drove Caesar to the brink of catastrophe. "Today the enemy would have won," commented Caesar, "if they had a winner."

It is true that Caesar was able to make decisions and carry out actions much faster than his opponents - from a personal point of view and in the role of an insurgent general. But that could only partially compensate for the lack of soldiers and the lack of a fleet. After the Senate declared him an enemy of the state, Pompey managed to cross the Adriatic Sea unmolested with five legions from Brundisium (Brindisi). In Dyrrhachium, at the starting point of the famous Via Egnatia, he moved into an extensive camp and began to mobilize the almost immeasurable resources of the East for the fight against Caesar.