Justinian began the war in 535, taking as his pretext the murder of Queen Amalasuntha, daughter of Theodoric, who had placed herself under his protection, and alleging that the Ostrogothic kingdom had always owned a species of allegiance to the emperor at Constantinople.
In January 1810 Napoleon annexed the island of Walcheren, alleging that Louis had not done his share in defending the interests of France at the time of the British Walcheren expedition (1809).
Frederick, alleging the danger of acting without the concurrence of Prussia, refused, and dissolved the diet.
In 292, Lysimachus declared war against them, alleging as an excuse that they had rendered assistance to certain barbarous Macedonian tribes.
He seized everything, alleging different rights in each place; but he displayed such violent haste and such trickery that he threw the heiress of Burgundy, in despair, into the arms of Maximilian of Austria.