"Many traveled from all four provinces there just to be a part of that celebration, to thank God for the freedom to worship, to thank God for the freedom to preach the Gospel in their country, and to celebrate God's faithfulness," Sergey Rakhuba with Mission Eurasia told Mission Network News.

The gathering came after Ukrainian president Petro Poroshenko signed an order recognizing the anniversary of the reformation.

"It was so exciting to see on the screen of my computer where I was watching young people with so much joy. They glorify God in the midst of their capital. This was the same place where they were protesting just a few years ago fighting for their freedom. But, also, this is the place where many years ago, Communists would force people to demonstrate and propagate Socialism, Atheism, Communism, and other 'isms' in their country."

Rakhuba says young people are the key to spreading Protestantism in Ukraine.

"That's what Mission Eurasia is doing, working with the next generation, those who take the baton, those who get into the generational gap and take the Gospel to their communities," he says.

Young people aren't just spreading the gospel in Ukraine, now they're exporting missionaries throughout the world.

"I just talked to a group of young people. They just came to this celebration from their mission trip to Mongolia in China — young Ukrainians who felt like the Holy Spirit was leading them to take the Gospel to … Mongolia where they reached thousands of young people through summer camps!"

Ukraine may still be in the middle of a war with Russia, but it is growing leaps and bounds spiritually.

"Ukraine is still in the midst of war. Eastern Ukraine and territories are still occupied by Russian or pro-Russian separatists. Crimea was annexed by Russia. So yes, Ukraine is struggling politically, economically, but Ukraine is striving today spiritually, pleading to God to bless that nation," Rakhuba says.