IZETTA SMASH !!!
Spoiler lamp is ON
TLDR summary:
Yes, the puny Elystadt army is overwhelmed, yes, they are cannon fodder before the planes, bombs and tanks of the alt-Wehrmacht. Watch them die tragically, heroically.
Awwwww crap this is going on much too long.
Yes, 16 minutes and 16 seconds of episode time, if you want to be picky about it.
Wait, what’s that?
…Up in the sky, it’s a bird, it’s a plane… 
Finally roused to action, Izetta skewers the alt-Luftwaffe and then descends to the battlefield to throw tanks around like the Hulk. The Princess is happy Izetta didn’t bug off. The enemy is vanquished! The troops cheer! 
No pantsu shots. Must learn to accelerate antique swords to mach 6 lest they just bounce off tanks 
Pacing in episode 3 seemed off, at least in comparison to the adventurous clip of the first and first half of the second episodes. I suspect that the grinding on the battlefield situation was a nod towards the military fans.
The defending Elystadt troop seemed decked out in WWI vintage French and Belgian -ish kit.
The over-confident alt-nazi general staff were right out of central casting. It would be interesting if in later episodes princess Fine takes a more active role in the defense of the realm, rather than simply standing as as figurehead to rally the troops, who mop up after Izetta hurls tanks around and shatters enemy planes. The one Elystadt general that we have seen came across as a doddering blowhard. A Princess with the tactical imagination of a field marshal would be a great compliment to a super-powered magical girl.
The story also requires some Izetta-kryptonite and spy vs spy skullduggery, if only to put a few more characters (seen in the PV) into play. Meanwhile
Look at the powerful duo.
Lets just hope the pace picks up.
HEARTS OF FURIOUS FANCIES 