The 2nd Invasion of Naboo happened when the Seperatists found out that Padme had gone back to visit her planet for a few days. They told Nute Gunray this fact and he told them to attack Naboo right away and if they succeeded in capturing Padme, he would pay them a large sum. Thankfully, The Clone Army heard the rumours and decided to go protect Padme from the aproaching Seperatists. This is what happened when they both landed within 2 minutes of each other. The battle was in the wide open, so 200 clones and 500 droids lost their lives in the first 10 minutes. But the Republic brought reinforcements and destroyed the entire Droid army in seconds. Padme and the rest of the troops quickly sent back to the Venator-class Star Cruiser to be traded for the 349th Legion to protect the Capital City of Naboo, Theed.