The shortest war in history occurred between Britain and Zanzibar in 1896 and lasted just 38 minutes. Despite its brevity, it had significant consequences, including the end of the slave trade in Zanzibar and the beginning of British influence in the region.
You thought the Anglo-Saxons invaded Britain in the 5th century? Ha! Turns out they just kind of showed up and made themselves at home. Talk about a friendly invasion!
In 75 BC, Julius Caesar was captured by pirates. After a ransom was paid, Caesar raised a fleet and captured the pirates, setting him on the path to becoming a powerful Roman leader.