Non Credible Defence is a community on Lemmy (I forget which instance) that seems to be about the Ukraine-Russian war, favouring the Ukrainian side (I think). I'm uncertain of this because the most distinctive aspect of NCD is the "shitposty" approach to what is sometimes really dark war stuff, which makes discerning their "stance" difficult. I've seen some people denounce NCD and argue that it's inappropriate to make light of the realities of the war with memes, but I can also see the argument that NCD is at least partly satirical, and that people have been coping with the horrors of war by making light of it for millennia. I haven't spent much time in that community myself, so take my explanation with a pinch of salt.

It's easier to answer your first question about Raytheon. They're an American (I think) military manufacturer who are profiting absurdly from Israel's ongoing genocide of Palestine. Arms manufacturers and other corporations putting rainbows on stuff during June is always a bit cringe, but it's more offensive than ever. N.b. I don't know if Raytheon has actually done any pride branding or if that logo in the image is created for meme purposes.