L'invasione interrompe il gioco.

Because invasione is a feminine singular noun, so its normal article is la. In Italian, la becomes l' before a word beginning with a vowel:

• la casa
• l'invasione

This is called elision. It makes the phrase sound smoother.

Invasione is feminine. One clue is the ending -ione, which is very often feminine in Italian:

• la nazione
• la decisione
• la televisione
• l'invasione

So the sentence starts with a feminine singular noun: l'invasione.

Because the subject is l'invasione, which is third person singular: the invasion.

The verb interrompere is conjugated here in the present indicative:

• io interrompo = I interrupt
• tu interrompi = you interrupt
• lui/lei interrompe = he/she/it interrupts

So l'invasione interrompe means the invasion interrupts.

The base form, or infinitive, is interrompere, meaning to interrupt.

In this sentence:

• interrompe = interrupts / is interrupting, depending on context

Italian often uses the simple present where English might use either interrupts or is interrupting.

Italian often uses articles more regularly than English does. Here, il gioco means the game.

• il = masculine singular definite article
• gioco = game

So:

• interrompe il gioco = interrupts the game

You generally cannot leave out il here if you mean a specific game or the game in a general stated situation.

Because gioco starts with g + vowel (gio-), so it takes il, not lo.

Use lo before certain masculine singular nouns starting with:

• z
• s + consonant
• ps
• gn
• x
• y

Examples:

• lo zaino
• lo studente
• lo psicologo
• lo gnomo

But:

• il gioco
• il gatto
• il libro

Gioco usually means game. In some contexts, it can also mean play, gameplay, or even match-related action, depending on what kind of activity is being discussed.

So interrompe il gioco could mean:

• interrupts the game
• stops play

The most natural translation depends on context, but grammatically gioco is the direct object of the verb.

In this sentence:

• L'invasione = the subject
• interrompe = the verb
• il gioco = the direct object

A good way to check is to ask:

• What interrupts the game? → The invasion

So l'invasione is doing the action.

• What is interrupted? → the game

So il gioco receives the action.

The normal order is:

subject + verb + object

So: L'invasione interrompe il gioco.

Italian can sometimes change word order for emphasis, but this is the most neutral and standard version. For example, you might sometimes see a different order in literary or emphatic contexts, but a learner should treat this sentence as a straightforward subject–verb–object structure.

Yes. Interrompe is present indicative. In Italian, the present tense can cover both ideas that English separates into:

• interrupts
• is interrupting

So without more context, L'invasione interrompe il gioco could be understood as either:

• The invasion interrupts the game
• The invasion is interrupting the game

English chooses between simple present and present continuous more often than Italian does.

A simple pronunciation guide is:

Leen-vah-ZYOH-neh een-teh-ROM-pe eel JYOH-koh

A few helpful notes:

• gli is not in this sentence; gi in gioco sounds like the j in job
• zione in invasione sounds roughly like tsyoh-neh
• the stress is on:
  • invasione
  • interrompe
  • gioco

A more IPA-style version is:

[linvaˈzjone interˈrompe il ˈdʒɔko]

Yes. Although invasione can mean a literal military invasion, it can also be used more broadly, depending on context, for an invasion onto a field/court/stage/space or even a figurative flooding of something.

So in a sentence like this, it might refer to:

• a literal invasion
• a crowd rushing onto the field
• some kind of intrusion that stops play

The grammar stays the same regardless of the exact context.