The first major thing an invading country should do is to take down twitter to disrupt communication and spread panic amongst the population. This is common knowledge.
Today I tried logging in to twitter, but I could not connect to the server, all other webpages worked as a charm, so I was sure this only affected Twitter, are we under attack?! The logical answer would have been yes, but no there was no foreign planes in the sky, no explosions or enemies in sight. No signs of an attack at all. So we were safe.
According to their Status page they had some problem and their engineers were working to resolve the issue.
Phew! No invasion, we are safe.. ..for now..
Twitter is now back online, we survived the first attack 😉