Author's Note and Disclaimer:

So, here we are at another sequel to THE DAR(H)K WAR saga, set up in Crisis on Earth-X. I originally considered writing it after I finished League of Shadows but then the new semester came and I wasn't in mood to write too many stories to exhaust myself. However, it is nearing an end and I thought I may as well get it started and I have decided that every year, I am going to write a sequel to THE DAR(H)K WAR saga, covering Arrowverse crossover, so you can expect that during or after Christmas, I will write the next crossover with Batwoman that will be the next season.

I do not own DC Comics or the CW TV shows Arrow, The Flash, Legends of Tomorrow or any other characters or elements pertaining to the mentioned franchises.

Earth-X

Thunder roared in the sky above the city, where on buildings were hanging red flags with swastikas and blimps flied above as elsewhere, guards outside a warehouse were talking to a man in a lab coat.

"Hey, doc, you really think you can make that thing work?"

"We need to make it work if we're gonna bring hope back to this darkened world." The doctor replied. But then, as he was about to drink from his mug of coffee, a black arrow flied through the air, shattering the mug in the doctor's hand and piercing his chest as he fell down and then more guards were shot down by black arrows as a man in black hooded suit with red piping, a swastika symbol on his upper arm wearing a black mask with red lenses engaged the guards and taking them down ruthlessly.

As he neared the compound, he stopped as he noticed someone was behind him. "You're the best they could send?" He asked in a distorted voice.

"Funny, I was gonna say the same thing." The man in metal armor replied as Dark Arrow spun around and fired but the armored man used his shield to block the arrow. The armored man cracked his neck before engaging the archer. The archer kicked, punched and spun around but the armored man kept on blocking with his shield and counterattack, when suddenly, he was shot down from behind by a man in metal armor, a cape and a bat shaped mask, with two pistols in his hands as he neared the man with a shield and looked at the symbol on his shield as he kicked the helmet off to reveal the face of James Olsen before the archer stepped on his chest.

"There are more like me." James coughed out. "And one day they will free this world."

"That day may come but you won't be here to see it." The archer said.

"That flag died a long time ago." The man in bat suit added.

"Well, it still means something." James murmured.

"Yeah. It's a bullseye." Dark Arrow notched an arrow and fired, executing James. "Is the weapon ready?" He turned to the man in bat mask.

"Soon." The man nodded.

"Excellent, Knight. Prepare our men. The assault is coming."

Central City, Earth-1

The Flash was circling around King Shark as Iris called out. "Barry, we have a major problem."

"Yeah, fighting it right now." Barry snapped.

"No, no, it's about our wedding." Iris corrected

"This is not the best time!" The Flash groaned as King Shark grabbed him and threw him, sending him flying through several windows. The Flash got up and rushed at King Shark from behind, knocking him to the ground by hitting him in the head.

"Well, the caterers need a final count tomorrow morning and not everyone has RSVP'd yet." Iris pointed out.

"Who hasn't RSPV'd?" The Flash scowled.

Philadelphia

"B.C., I actually forgot to tell you something." Batgirl called out as Black Canary, Huntress and Katana were fighting a group of mercenaries on a ship and one of them was holding Black Canary in chokehold.

"Don't tell me… they… planted another… bomb here…" Black Canary groaned as she slammed the mercenary to the wall and punched him in the face, knocking him out.

"Well… no… it's about Barry's and Iris's wedding. Hank and Sara have already RSVP'd and called me if they should prepare some dresses for us." Batgirl said and Huntress shot one of the thugs down.

"Is Dick coming?" She asked.

"Yeah." Batgirl said.

"Then RSVP us." Huntress smirked as she dodged an attack of another thug, while Katana kicked the man in the face, knocking him out.

Gotham City

Henry was preparing his suit, while Sara whistled from behind. "Wow. You look better than at Laurel's and Ollie's wedding."

He turned around to admire Sara's suit. "Where's your dress?"

"After the dinner." Sara promised and Henry nodded.

"I'm sure you'll look beautiful." He neared her as they kissed. "BTW, Bruce and Selina are coming too."

"And I called Mick and the others." Sara smiled. Henry then went downstairs as Sara smiled before she noticed a small box on the drawer and curiosity got the better out of her as she looked inside and saw a diamond ring as she gapped….

Star City

Oliver used Wells' transmogrification device to change his face as Laurel smiled. "How do I look?"

"No one would guess it was Oliver Queen." Laurel in her dress smirked as they put Ashley in a crib.

"I hope Samantha and William will be there too."

Elsewhere, a woman with long blonde hair was in an office at the computer working before someone tapped at her desk and she looked up and gapped.

"Roy." She smiled as Roy chuckled. "Is everything OK?"

"Are you coming to Barry's and Iris's wedding?" Rachel tensed before turning away from him. "It's been two months. I know it must have been hard but you can't bury yourself into work to smother the grief. Live a little. We'll all be there for each other."

"Roy, I…" She hesitated.

"He wouldn't want you to blame yourself forever. Remember?" Roy pointed out as she sighed.

"OK. I'll just pick my dress." She nodded, giving in.

Later, Central City

Iris, Caitlin, Laurel, Kara, Thea, Samantha, Nicole, Helena and Barbara were enjoying their spa day in a salon as Tatsu was looking over Ashley in a crib.

"Iris, you are glowing." Laurel said, handing her the glass of champagne.

"Wait, it's pregnant women who glow, brides blush." Caitlin corrected.

"Right." Iris smiled. "Blushing brides I can do, the other one, not just yet."

"Ladies' day, my, I've forgotten how much fun it is." Nicole laughed.

"Yeah, last time we did that was back at college." Barbara smiled.

"You know, I mean, I've been in love with Iris since I was ten." Barry said as the tailor was helping him with his suit.

"You could always speed-read it." Oliver said as he and Bruce came out from the changing area.

"No, no one would understand me." Barry protested. "I don't know what to do, guys. I need help."

"Barry, when you're up there and you look into her eyes, the words will come." Bruce assured him.

"And if they don't, the look in your face will tell her everything that she needs to know." Oliver finished. "That's how it happened with me and Laurel. By the way, you clean up nice, my friend."

"Thanks. Yeah. I needed that." Barry chuckled. "You two too, guys."

"I hope it will end up for you as well as it did for me and Laurel." Oliver smiled.

"And what about you and Selina?" Barry turned to Bruce. "Ever since the League of Shadows, have you…"

"Maybe." Bruce said. "But we're… a lot's going on right now. You're lucky to have that luxury, Barry."

Earth-X

Dark Arrow stepped up on the platform as behind him was rolled down on the wall the Nazi flag before he saluted to his men. "Hail victory."

"Hail Fuhrer." The soldiers saluted back.

Dark Arrow approached the lackey. "The rebels' technology is impressive. It's a good thing you stopped them when you did." The lackey said as they walked down the compound.

"Can you make it work?"

"Yes. But…" The lackey paused as Dark Arrow whirled on him. "I need time to test it. To make sure they haven't set a trap."

A whooshing sound went off in the air as a blonde woman in black was floating, with a red cape and a mask similar to Dark Arrow's next to him. "You have one day." Overgirl ordered.

"You heard her." Blitz Knight said as he neared them.

"And if you fail…" Deathwing neared his sticks to the lackey as he paled. "I will break every single bone in your body in ways they will never heal."

Author's Note:

The new villains here are on suggestion from FanFic-Reader J93. The Blitz Knight is the Earth-X version of Batman and Deathwing is Earth-X version of Nightwing but they are not Bruce Wayne or Dick Grayson, you will see.

So, what do you guys think? Is it good? Is it bad? Should I continue?

Please review and let me know if you have been enjoying this.

With regards

Bl4ckHunter