It's not even clear that the issue is weapons. This isn't 1980s Afghanistan we're talking about. Ukraine is a former member of the USSR and was within spitting distance of NATO, so they're armed with fighter and attack aircraft, helicopter gunships, transport aircraft, artillery, armored personnel carriers, etc. etc.
None of it in a particularly good order, most of it a generation behind. And not enough of it to withstand Russia, which poured their gas-monies into weapons and training — in addition to skilful propaganda relying not only on the Leftists traditionally sympathetic to anything "revolutionary", but also on the Rigthists this time...
early on in the conflict, a group of soldiers simply surrendered their armored personnel carriers without a shot being fired
And the keyword here is "early in the conflict". Up until late Spring Russian television was allowed to broadcast in Ukraine... But, yes, Ukrainian's regular military does have issues of its own — many senior officers entered service during Soviet times. But not the newly-formed National Guard volunteers, who remain the shining edge of Ukraine's otherwise rusty blade. And they had to scrounge equipment themselves — from guns and ammunition to infra-red detectors to life-saving Celox...
presumably they're offering intelligence support such as satellite photos as well
Yeah, "presumably". Maybe, now they do alright. But what prevented them from doing it before Crimea got invaded? Russia was massing forces for it for a month in advance — had Pentagon not seen it from above? They had... And they surely had informed the President. But Mr. Incompetent did no see fit to inform Ukraine — neither side of the political fight there — so the invasion was a complete surprise for them... Ukrainian units stationed on peninsula did not know, what to do, and the new leaders did not have a worked-out policy. Their excuse is, they had more important things to do, what's Obama's? Too busy signing people up for Obamacare?
The US has sent body armor and night vision goggles.
Only in June! Four months since Russia first invaded — and only after multiple people, both Republican and Democrats, demanded it. Had Obama been anything more than a pathetic "community organizer", he would've reacted in March instead of trying to glue the pitiful attempts to "Reset" his relationship with Russia back together. But then, if he had been, Putin might not even have dared to invade in the first place...
Perhaps more importantly, the West has committed $27 billion in aid to Ukraine over the next two years
First of all, it is an IMF loan, not true aid. It is still welcome, of course, but it will be a while before it helps troops on the ground. Putin remains a step ahead of our amateur, who is training on-the job (as his own Vice-Amateur once said).