Then there are outright broken sentences like this:
>The 1980s saw an increase in threats capable to countering the SR-71, including improved enemy air defenses and the introduction of the MiG-31, which was armed with the R-33 air-to-air missile could intercept the Blackbird.
This just breaks my mental parsing, since there are so many ways to fix this:
1. ..MiG, which, being armed with the R-33 missile, could intercept the Blackbird;
2. ..MiG, which was armed with the R-33 missile, and could intercept the Blackbird;
3. ..MiG, which was armed with the R-33 air-to-air missile, and therefore could intercept the Blackbird.
>The 1980s saw an increase in threats capable to countering the SR-71, including improved enemy air defenses and the introduction of the MiG-31, which was armed with the R-33 air-to-air missile could intercept the Blackbird.
This just breaks my mental parsing, since there are so many ways to fix this:
1. ..MiG, which, being armed with the R-33 missile, could intercept the Blackbird;
2. ..MiG, which was armed with the R-33 missile, and could intercept the Blackbird;
3. ..MiG, which was armed with the R-33 air-to-air missile, and therefore could intercept the Blackbird.
(and so on)