Trunks is the son of another great Z soldier, Vegeta. Just like his father, he likes to battle and fight till the end, and has never given up. Trunks is not a pure Siyan-Jin, he is a mix of human and Saiyan, as you can tell by the color of his hair (purple). During the DragonBall Z series, Trunks appeared in two different sections of the storyline, one where he was a small boy, and another where he was already a grown-up. Trunks might not be the strongest in battles, he might not be the quickest, but he is the most important. He is one who changed the past and the future, without Trunks, Earth would been destroyed a long time ago.


So what is this about Trunks changing the past and the future? Referring to the timeline, in the original future, Gokou died of a heart disease and Vegeta was killed a long time ago. Earth was in consistant danger caused by the Androids 17 and 18 and the Dr Gero crew, and the only Z fighters left were Gohan and Trunks. Gohan was later killed by the Andriods and Trunks knew that if he goes and fight them, he would be killed as well. He changed plan. His mother, Bulma, completed building a time machine, so Trunks could travel back 17 years in time and passed on some medicine to cure Gokou's heart disease, so Gokou could avoid death and fight on protecting Earth. He travelled back in time to a period where he was only an infant, and his father Vegeta didn't even know who he was until Trunks explained the whole situation to everyone. After Trunks completed his mission, he went back to the future, then Chibi Trunks took over the modified future. Chibi Trunks was born a few years later after Future Trunks went back, and Chibi Trunks continued on the journey with the rest of the Z solidiers.

Future Trunks fights with a sword (not often though), however, Chibi Trunks never used a sword in battle before, so the sword is probably an extra technique Trunk developed later on in life. Chibi Trunks and Goten are good friends and they often work in a team during battles (like their transformation into Gotenks). With Goten assisting him by his side, Trunks and Goten have combined some real force for the Z Team.