our
this [our] country
《事が主語》 be highly satisfactory to one
win [meet with] one's full approval
《人が主語》 heartily agree with 《somebody in his views》
be very happy 《to hear that…》
⇒わがみ.
fall into one's hands [【形式ばった表現】 possession]
make something one's own; take possession of something (for oneself)
〈修得する〉 master.
我が物顔に
as if one owned 《it, the place》
as if one were 《its》 owner [proprietor]