An alliance is essentially a connection through which a common interest is shared.

The word patriot comes from patrios (Greek, not Latin for once), which means "of one’s father." So, despite various references to the motherland, the word patriot more or less lands us square in the fatherland arena

Most often used as a noun to describe a military unit made up of several battalions, the word regiment can also be used as a verb.

Desert comes from the Latin desertus, for abandoned or lying in waste

The noun tirade is related to the Italian word tirata, which means "volley." 

1350-1400; (adj.) Middle English < Latin praecēdent- (stem ofpraecēdēns) present participle of praecēdere to go before, precede (see -ent ); (noun) late Middle English, derivative of the adj.

The origin of cantankerous is unclear (it may be at least partly from Middle English contek 'dissension'), but ever since it first appeared in plays from the 1770s, it's been a popular way to describe someone who is quarrelsome and disagreeable. 

The noun discourse comes from the Latin discursus to mean "an argument."

Indignation traces back to the Latin prefix in- "not" and root dignus"worthy" and means anger at something that is unfair or unjust. 

Belligerent comes from the Latin word bellum, for "war." You can use it to talk about actual wars 

1350-1400; Middle English (< Anglo-French) < Latin contemptus aslighting = contemn(ere) to despise, scorn (see contemn ) + -tus suffix ofv. action (with loss of n and intrusive p)

1545-55; < Middle French desparite < Late Latin disparitās; see dis-1,parity1

1425-75; late Middle English encrochement < Anglo-French. See encroach,-ment

before 900; Middle English wanen (v.), Old English wanian to lessen;cognate with Middle Dutch, Middle High German wanen, Old Norse vana tocause to wane, destroy