Patriotism
noun
When you have love for your country deep within your heart, that is patriotism.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
愛国心は無いよりある方がいいでしょう。
It is better to have patriotism, than not to have it, right?
日本に住んでるんだから、日本への愛国心を持つことは自然なことです。
Since you live in Japan, it is natural to have patriotism toward Japan.
愛国心がやたらに強い男が、トーフグに入社しました。
A very patriotic man joined Tofugu.