considerable doubts. that her majesty's government had about initiating action. >> i'm absolutely convinced that that was one point where the queen and images thatcher, who didn't see at eye on everything, suddenly saw it i. >> america had always been a great ally. so when the u.s. went into grenada -- and didn't let the queen no, that was a tricky moment. >> the successful invasion last just for days. >> i think you only need to look at the shot of the queen and ronald reagan, riding windsor, to realize that grenade i was overcome. >> margaret thatcher and the queen may agree on the grenade a invasion, but in 1986, an article surfaces, revealing disagreement on apartheid. the institutional racial segregation, plaguing for decades. >> the times newspaper and the uk published an article under the headline, queen displayed -- dismayed by uncaring thatcher. >> the article went on to talk