They didn't, they used gas which was against international law.
The naval battle of Trafalgar was fought on October 21, 1805. The British fleet under Lord Nelson met a combined fleet of French and Spanish ships off the coast of Spain. The English fleet won a tremendous victory ensuring that Napolean would not be able to invade Britain. Admiral Lord Nelson died during the battle.
The article calls this declaration by Putin cynical because the invasion was more than a special operation and would militarize Ukraine.
<h3>Why did the article say this?</h3>
Putin's invasion of Ukraine was done with around 100,000 soldiers which means that it is a full scale invasion and not a special operation.
Ukraine has also become heavily militarized as a result of so many soldiers being in it. Putin was therefore being cynical because he was oversimplifying and lying about his invasion.
Find out more on the Russia - Ukraine conflict at brainly.com/question/26660181.